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  1. Last 7 days
    1. Browsing through Walten’s notes also helped Jagersma to get to know the pamphleteer better, even though he is been dead for three hundred years. “The Memoriaelen say a lot about him. I could read how Walten did his research, follow his fascinations, and see the ideas for pieces he was not able to work out anymore. In a way, these two notebooks are a kind of self-portrait.”
    2. In the process, her notes become very personal. “The more personal, the more valuable,” says Fraza. “The way in which you link your ideas is what makes your knowledge base unique.”
    1. If you feel the need to categorize and separate them in such a surgical fashion, then let your index be the place where this happens.

      The index is the place for categorization. Now the questions is how deep is good enough to categorize.

    1. I came here looking for the glycemic index for bananas to see if this might explain a friends delayed reaction to consuming high amounts of salicylate. That is, the pain they experienced as a burn in the mouth/tongue only occurred after consuming a banana. A prior search tentatively suggested that spikes in insulin (which occur with foods high in glycemic index and glycemic load) can cause inflammation to the affected region which sends white blood cells as a response and can cause swelling and increased sensitivity to pain.

    1. He saw that her suitcase had shoved all his trays of slips over to one side of the pilot berth.They were for a book he was working on and one of the four long card-catalog-type trays wasby an edge where it could fall off. That's all he needed, he thought, about three thousand four-by-six slips of note pad paper all over the floor.He got up and adjusted the sliding rest inside each tray so that it was tight against the slipsand they couldn't fall out. Then he carefully pushed the trays back into a safer place in therear of the berth. Then he went back and sat down again.It would actually be easier to lose the boat than it would be to lose those slips. There wereabout eleven thousand of them. They'd grown out of almost four years of organizing andreorganizing and reorganizing so many times he'd become dizzy trying to fit them all together.He'd just about given up.

      Worry about dropping a tray of slips and needing to reorganize them.

    1. Around 1956: "My next task was to prepare my course. Since none of the textbooks known to me was satisfactory, I resorted to the maieutic method that Plato had attributed to Socrates. My lectures consisted essentially in questions that I distributed beforehand to the students, and an abstract of the research that they had prompted. I wrote each question on a 6 × 8 card. I had adopted this procedure a few years earlier for my own work, so I did not start from scratch. Eventually I filled several hundreds of such cards, classed them by subject, and placed them in boxes. When a box filled up, it was time to write an article or a book chapter. The boxes complemented my hanging-files cabinet, containing sketches of papers, some of them aborted, as well as some letters." (p. 129)

      This sounds somewhat similar to Mark Robertson's method of "live Roaming" (using Roam Research during his history classes) as a teaching tool on top of other prior methods.

      link to: Roland Barthes' card collection for teaching: https://hypothes.is/a/wELPGLhaEeywRnsyCfVmXQ

    1. I make a habit of outlining chapters in Obsidian as it allows me to structure them with indented bullet points, and to link individual bullet points to supporting notes, including notes on original sources. I also make the bullet points into checkboxes, so I can check them off as I make my way through the outline as I’m drafting the actual chapter.
    1. Anybody using this approach to manage contacts? How?

      reply to IvanFerrero at https://forum.zettelkasten.de/discussion/1740/anybody-using-this-approach-to-manage-contacts-how#latest

      Many of the digital note taking tools that run off of text allow you to add metadata to your basic text files (as YAML headers, inline with a key:: value pair, or via #tags). Many of them have search functionality or use other programmatic means like query blocks, DataView, DataViewJS, etc. for doing queries on your files to get back lists, tables, charts, etc. of the data you're looking for.

      The DataView repository has some good examples of how this works with something like Obsidian. Fortunately if you're using simple text files you can usually put them into one or more platforms to get the data and affordances you want out of them individually.

      As an example, I have a script block in my daily note in Obsidian for birthdays in my notes that fall on today's date:

      ```dataview LIST birthday FROM "Lists/People" WHERE birthday.day = date(2023-01-18).day ```

      If I put the text birthday:: 1927-12-08 into a note about Niklas Luhmann, his name and birthday would appear in my daily note on his birthday. One can use similar functionality to create tables of books they read with titles, authors, ratings, dates read, etc. or a variety of other data input which parses through your plaintext files. Services like Obsidian, Logseq, et al. are getting better about allowing these types of programmatic searches for users without backgrounds in programming and various communities usually provide help for pre-made little snippets like the one above that one can cut and paste into their notes to get the outputs that they need. Another Obsidian based example that uses text files for tracking academic journal articles can be found at https://nataliekraneiss.com/your-academic-reading-list-in-obsidian/; I'm sure there are similar versions for other text-based platforms.

      In pre-digital times, for a manual version of a rolodex like this in paper, one could use different color cards as pseudo-tags (doctors are on yellow cards, family members on blue cards, friends on green cards, etc.) or adding edge notches or even tabs to represent different types of metadata. See for example the edge colored cards in Hawkexpress' Pile of Index Cards: https://www.flickr.com/photos/hawkexpress/albums/72157594200490122

  2. Jan 2023
    1. How do you maintain the interdisciplinarity of your zettlekasten? .t3_10f9tnk._2FCtq-QzlfuN-SwVMUZMM3 { --postTitle-VisitedLinkColor: #9b9b9b; --postTitleLink-VisitedLinkColor: #9b9b9b; --postBodyLink-VisitedLinkColor: #989898; }

      As humans we're good at separating things based on categories. The Dewey Decimal System systematically separates mathematics and history into disparate locations, but your zettelkasten shouldn't force this by overthinking categories. Perhaps the overlap of math and history is exactly the interdisciplinary topic you're working toward? If this is the case, just put cards into the slip box closest to their nearest related intellectual neighbor—and by this I mean nearest related to you, not to Melvil Dewey or anyone else. Over time, through growth and branching, ideas will fill in the interstitial spaces and neighboring ideas will slowly percolate and intermix. Your interests will slowly emerge into various bunches of cards in your box. Things you may have thought were important can separate away and end up on sparse branches while other areas flourish.

      If you make the (false) choice to separate math and history into different "sections" it will be much harder for them to grow and intertwine in an organic and truly disciplinary way. Universities have done this sort of separation for hundreds of years and as a result, their engineering faculty can be buildings or even entire campuses away from their medical faculty who now want to work together in new interdisciplinary ways. This creates a physical barrier to more efficient and productive innovation and creativity. It's your zettelkasten, so put those ideas right next to each other from the start so they can do the work of serendipity and surprise for you. Do not artificially separate your favorite ideas. Let them mix and mingle and see what comes out of them.

      If you feel the need to categorize and separate them in such a surgical fashion, then let your index be the place where this happens. This is what indices are for! Put the locations into the index to create the semantic separation. Math related material gets indexed under "M" and history under "H". Now those ideas can be mixed up in your box, but they're still findable. DO NOT USE OR CONSIDER YOUR NUMBERS AS TOPICAL HEADINGS!!! Don't make the fatal mistake of thinking this. The numbers are just that, numbers. They are there solely for you to be able to easily find the geographic location of individual cards quickly or perhaps recreate an order if you remove and mix a bunch for fun or (heaven forfend) accidentally tip your box out onto the floor. Each part has of the system has its job: the numbers allow you to find things where you expect them to be and the index does the work of tracking and separating topics if you need that.

      The broader zettelkasten, tools for thought, and creativity community does a terrible job of explaining the "why" portion of what is going on here with respect to Luhmann's set up. Your zettelkasten is a crucible of ideas placed in juxtaposition with each other. Traversing through them and allowing them to collide in interesting and random ways is part of what will create a pre-programmed serendipity, surprise, and combinatorial creativity for your ideas. They help you to become more fruitful, inventive, and creative.

      Broadly the same thing is happening with respect to the structure of commonplace books. There one needs to do more work of randomly reading through and revisiting portions to cause the work or serendipity and admixture, but the end results are roughly the same. With the zettelkasten, it's a bit easier for your favorite ideas to accumulate into one place (or neighborhood) for easier growth because you can move them around and juxtapose them as you add them rather than traversing from page 57 in one notebook to page 532 in another.

      If you use your numbers as topical or category headings you'll artificially create dreadful neighborhoods for your ideas to live in. You want a diversity of ideas mixing together to create new ideas. To get a sense of this visually, play the game Parable of the Polygons in which one categorizes and separates (or doesn't) triangles and squares. The game created by Vi Hart and Nicky Case based on the research of Thomas Schelling provides a solid example of the sort of statistical mechanics going on with ideas in your zettelkasten when they're categorized rigidly. If you rigidly categorize ideas and separate them, you'll drastically minimize the chance of creating the sort of useful serendipity of intermixed and innovative ideas.

      It's much harder to know what happens when you mix anthropology with complexity theory if they're in separate parts of your mental library, but if those are the things that get you going, then definitely put them right next to each other in your slip box. See what happens. If they're interesting and useful, they've got explicit numerical locators and are cross referenced in your index, so they're unlikely to get lost. Be experimental occasionally. Don't put that card on Henry David Thoreau in the section on writers, nature, or Concord, Massachusetts if those aren't interesting to you. Besides everyone has already done that. Instead put him next to your work on innovation and pencils because it's much easier to become a writer, philosopher, and intellectual when your family's successful pencil manufacturing business can pay for you to attend Harvard and your house is always full of writing instruments from a young age. Now you've got something interesting and creative. (And if you must, you can always link the card numerically to the other transcendentalists across the way.)

      In case they didn't hear it in the back, I'll shout it again: ACTIVELY WORK AGAINST YOUR NATURAL URGE TO USE YOUR ZETTELKASTEN NUMBERS AS TOPICAL HEADINGS!!!

    1. One even better plan is to get regular library index cards and, afterthe lecture is fairly well learned, transfer the points underlined to them, onecard to a lecture. These cards can be carried about and studied at oddmoments. One is enabled by their use to get the perspective view of thelecture which brings out the sense of values which one loses when onestudies the notes in their mass of detail only. With the skeleton in mindone has little difficulty in recalling the details .

      Here again he comes close to some of the methods and ideas of having flashcards for spaced repetition, but isn't explicitly aware of the words or techniques. Note that he also doesn't use the word flashcard. When was the word first used?

      Rewriting things as flashcards also tends to be a part of the spaced repetition itself.

      By cutting the notes up he's specifically decontextualizing them so as to make one's memory be better tested in coming up with the solutions/answers as they are more likely to appear on a test, decontextualized from the original lecture.

    1. For some scholars, it is critical thatthis new Warburg obsessively kept tabs on antisemitic incidents on the Easternfront, scribbling down aphorisms and thoughts on scraps of paper and storingthem in Zettelkasten that are now searchable.

      Apparently Aby Warburg "obsessively kept" notes on antisemitic incidents on the Eastern front in his zettelkasten.

      This piece looks at Warburg's Jewish identity as supported or not by the contents of his zettelkasten, thus placing it in the use of zettelkasten or card index as autobiography.

      Might one's notes reflect who they were as a means of creating both their identity while alive as well as revealing it once they've passed on? Might the use of historical method provide its own historical method to be taken up on a meta basis after one's death?

    1. May 19, 2004 #1 Hello everyone here at the forum. I want to thank everyone here for all of the helpful and informative advice on GTD. I am a beginner in the field of GTD and wish to give back some of what I have received. What is posted below is not much of tips-and-tricks I found it very helpful in understanding GTD. The paragraphs posted below are from the book Lila, by Robert Pirsig. Some of you may have read the book and some may have not. It’s an outstanding read on philosophy. Robert Pirsig wrote his philosophy using what David Allen does, basically getting everything out of his head. I found Robert Pirsigs writing on it fascinating and it gave me a wider perspective in using GTD. I hope you all enjoy it, and by all means check out the book, Lila: An Inquiry Into Morals. Thanks everyone. arthur

      Arthur introduces the topic of Robert Pirsig and slips into the GTD conversation on 2004-05-19.

      Was this a precursor link to the Pile of Index Cards in 2006?

      Note that there doesn't seem to be any discussion of any of the methods with respect to direct knowledge management until the very end in which arthur returns almost four months later to describe a 4 x 6" card index with various topics he's using for filing away his knowledge on cards. He's essentially recreated the index card based commonplace book suggested by Robert Pirsig in Lila.

    1. After browsing through a variety of the cards in Gertrud Bauer's Zettelkasten Online it becomes obvious that the collection was created specifically as a paper-based database for search, retrieval, and research. The examples and data within it are much more narrowly circumscribed for a specific use than those of other researchers like Niklas Luhmann whose collection spanned a much broader variety of topics and areas of knowledge.

      This particular use case makes the database nature of zettelkasten more apparent than some others, particularly in modern (post-2013 zettelkasten of a more personal nature).

      I'm reminded here of the use case(s) described by Beatrice Webb in My Apprenticeship for scientific note taking, by which she more broadly meant database creation and use.

    1. Her work on borrowed function words was so far manifest in her Konkordanz der nichtflektierten griechischen Wörter im bohairischen Neuen Testament, Göttinger Orientforschungen VI/6, Wiesbaden: Harrassowitz 1975, the tip of the iceberg as we know now.

      Gertrud Bauer used her zettelkasten on Coptic and Greek to write Konkordanz der nichtflektierten griechischen Wörter im bohairischen Neuen Testament, Göttinger Orientforschungen VI/6, Wiesbaden: Harrassowitz 1975, a work on borrowed function words.

    1. Index card carrying case

      Try Kaitiaki or Rite in the Rain. If you search for "index card wallet" you'll likely find a variety of others, including some custom made versions on sites like Etsy. 3 x 5" are relatively common, but 4 x 6" are much harder to come by.

    1. Expansion is led by focus. By taking time to edit, carve up, and refactor our notes, we put focus on ideas. This starts the Great Wheel of Positive Feedback. All hail to the Great Wheel of Positive Feedback.

      How can we better thing of card indexes as positive feedback mechanisms? Will describes it as the "Great Wheel of Positive Feedback" which reminds me a bit of flywheels for storing energy for later use.

    1. CREATE INDEX Statement

      ABOUT INDEXES *indexes can make queries faster, much like looking for a term in the index of a textbook instead of skimming through all the pages in the book to find all the references to the term. However, indexes take storage space and the DBMS must maintain the index as rows are inserted, updated and deleted in the table.

    1. The array subscript numbers are written within square brackets. By default PostgreSQL uses a one-based numbering convention for arrays, that is, an array of n elements starts with array[1] and ends with array[n].
    1. Many of the topic cards served as the skeleton for Mediterranean Society and can be usedto study how Goitein constructed his magnum opus. To give just one example, in roll 26 wehave the index cards for Mediterranean Society, chap. 3, B, 1, “Friendship” and “InformalCooperation” (slides 375–99, drawer 24 [7D], 431–51), B, 2, “Partnership and Commenda”(slides 400–451, cards 452–83), and so forth.

      Cards from the topically arranged index cards in Goitein's sub-collection of 20,000 served as the skeleton of his magnum opus Mediterranean Society.

    2. Goitein’s index cards can be divided into two general types: those thatfocus on a specific topic (children, clothing, family, food, weather, etc.) andthose that serve as research tools for the study of the Geniza. 48
    3. It is, however, important to keep in mind that, reflecting the trajectory ofGoitein’s study of the Geniza, there are often two sets of cards for a givensubject, one general and one related to the India Book.44

      Goitein, “Involvement in Geniza Research,” 144.

      Goitein's cards are segmented into two sets: one for subjects and one related to the India Book.

    4. About twenty thousand of those cards are 3 × 5 inches and seven thousand 5 × 8 inches.

      Goitein's zettelkasten is comprised of about 20,000 3 x 5" index cards and 7,000 5 x 8" index cards.

      Link to: https://hypothes.is/a/TEiQ5H1rEe2_Amfzi4XXmg

      While not directly confirmed (yet), due to the seeming correspondence of the number of cards and their corpus descriptions, it's likely that the 20,000 3 x 5" cards were his notes covering individual topics while the 7,000 5 x 8" cards were his notes and descriptions of a single fragment from the Cairo Geniza.

    5. In some cases, not unlike his Geniza subjects, Goitein wrotehis notes on pieces of paper that were lying around. To give but one example, a small noterecords the location of the index cards for “India Book: Names of Persons” from ‘ayn to tav:“in red \\ or Gray \\ box of geographical names etc. second (from above) drawer to the left ofmy desk 1980 in the left right steelcabinet in the small room 1972” is written on the back ofa December 17, 1971, note thanking Goitein for a box of chocolate (roll 11, slide 503, drawer13 [2.1.1], 1191v).

      In addition to writing on cards, Goitein also wrote notes on pieces of paper that he happened to have lying around.

    6. Until the development of new digital tools, Goitein’s index cards providedthe most extensive database for the study of the documentary Geniza.

      Goitein's index cards provided a database not only for his own work, but for those who studied documentary Geniza after him.

    1. While Clang has historically been faster than GCC at compiling, the output quality has lagged behind. As of 2014, performance of Clang-compiled programs lagged behind performance of the GCC-compiled program, sometimes by large factors (up to 5.5x),[28] replicating earlier reports of slower performance.[26] Both compilers have evolved to increase their performance since then, with the gap narrowing: Comparisons in November 2016 between GCC 4.8.2 versus clang 3.4, on a large harness of test files shows that GCC outperforms clang by approximately 17% on well-optimized source code. Test results are code-specific, and unoptimized C source code can reverse such differences. The two compilers thus seem broadly comparable.[30][unreliable source] Comparisons in 2019 on Intel Ice Lake has shown that programs generated by Clang 10 has achieved 96% of the performance of GCC 10 over 41 different benchmarks (while winning 22 and losing 19 out of them).[29]

      Clang is faster than GCC because it uses LLVM as its underlying compiler infrastructure. LLVM has a highly optimised code generation approach that makes it very efficient in terms of both space and time. In addition, Clang also contains several optimisation passes (such as global optimisations and link-time optimisation) that improve the generated code further.

    1. TIPOFF was created in 1987 for the express purpose of using biographic information drawn from intelligence products for watchlisting purposes. In 1987 TIPOFF began keeping track of suspected terrorists literally with a shoebox and 3 by 5 cards. Since then the program has evolved into a sophisticated interagency counterterrorism tool specifically designed to enhance the security of our nation's borders.
    1. <small><cite class='h-cite via'> <span class='p-author h-card'>Manfred Kuehn</span> in Taking note: Luhmann's Zettelkasten (<time class='dt-published'>08/06/2021 00:16:23</time>)</cite></small>

      Note the use of the edge highlighted taxonomy system used on these cards:

      Similar to the so called high five indexing system I ran across recently.


  3. Dec 2022
    1. I’m a screenwriter. One of the reasons I use Obsidian is the ability to hashtag. It sounds so simple, but being able to tag notes with #theme or #sceneideas helps create linkages between notes that would not otherwise be linked. My ZK literally tells me what the movie is really about.

      via u/The_Bee_Sneeze

      Example of someone using Obsidian with a zettelkasten focus to write screenplays.

      Thought the example appears in r/Zettelkasten, one must wonder at how Luhmann-esque such a practice really appears?

    1. The drawers are jammed with jokes typed on 4-by-6-inch cards — 52 drawers, stacked waist-high, like a card catalog of a certain comedian’s life’s work, a library of laughs.

      Joan Rivers had an index card catalog with 52 drawers of 4-by-6-inch index cards containing jokes she'd accumulated over her lifetime of work. She had 18 2 drawer stackable steel files that were common during the mid-1900s. Rather than using paper inserts with the label frames on the card catalogs, she used a tape-based label maker to designate her drawers.

      Scott Currie, who worked with Melissa Rivers on a book about her mother, Joan Rivers, at the comedian’s former Manhattan office. Many of her papers are stored there.Credit...Hiroko Masuike/The New York Times

      Note carefully that the article says 52 drawers, but the image in the article shows a portion of what can be surmised to be 18 2-drawer cabinets for a total of 36 drawers. (14 2-drawer cabinets are pictured, but based on size and perspective, there's one row of 4 2-drawer boxes not shown.)

    1. For example I had a few notes on principles of modern cryptography that came in handy when I had to write a paper about a related topic for my studies. But these cases were rare at best, most of these notes were never looked at again.

      The one shining moment in the whole essay and they don't seem to realize where the benefit or use actually was. They finally had a reason to have taken notes and the ideas shone here. But they've written off the tools because they didn't understand when to use them.

      Hammers are cool, but unless you're a professional carpenter, you don't carry it around all the time and use it constantly to hammer things. The same is true of note taking as a tool. You might use it regularly if you're a writer or an academic perhaps, but for hourly use in your day-to-day? Almost definitely not.

    1. Goitein accumulated more than 27,000 index cards in his research work over the span of 35 years. (Approximately 2.1 cards per day.)

      His collection can broadly be broken up into two broad categories: 1. Approximately 20,000 cards are notes covering individual topics generally making of the form of a commonplace book using index cards rather than books or notebooks. 2. Over 7,000 cards which contain descriptions of a single fragment from the Cairo Geniza.

      A large number of cards in the commonplace book section were used in the production of his magnum opus, a six volume series about aspects of Jewish life in the Middle Ages, which were published as A Mediterranean Society: The Jewish communities of the Arab World as Portrayed in the Documents of the Cairo Geniza (1967–1993).

    2. https://genizalab.princeton.edu/resources/goiteins-index-cards

      <small><cite class='h-cite via'> <span class='p-author h-card'>u/Didactico</span> in Goitein's Index Cards : antinet (<time class='dt-published'>12/15/2022 23:12:33</time>)</cite></small>

  4. www.sanduskycabinets.com www.sanduskycabinets.com
    1. http://www.sanduskycabinets.com/flipbook/?page=2

      According to Sandusky customer service, most of the Buddy Products line was discontinued in 2019 and remaining portions were sold to https://www.metalcabinetstore.com/ which may or may not have them.

    2. http://www.sanduskycabinets.com/flipbook/?page=2

      Page 2 of the Sandusky Lee / Sandusky Buddy catalog indicates that page 52 has File Card Storage Boxes, but the page doesn't exist in this version of the 2020 catalog.

    1. Zettelkasten, which in American English means notebox, and in Euro-pean English translates to slip box.

      What really supports this distinction? The closest historical American English translation is probably "card index" from the early 1900s while the broader academic historical translation is "slip box".

    1. https://edward-slingerland.medium.com/there-is-only-one-way-to-write-a-book-637535ef5bde

      Example of someone's research, note taking, and writing process using index cards.

      Broadly, this is very similar to the process used by Ryan Holiday, Robert Green, and Victor Margolin.

      While he can't recall the name of the teacher, he credits his 7th grade English teacher (1980-1981) for teaching him the method.

      Edward Slingerland is represented by Brockman Inc.

    2. That sounds challenging, of course, but I find that the writing, at this stage, is actually relatively easy: the card organization has already done most of the work. The cards tell the story, you now just need to (skillfully!) weave them together.

      Anecdotal evidence that the final "writing" portion of a card index process is "relatively easy" as the majority of the work has already been done.

    3. This is the absolute hardest part of the writing process, in my mind. The most exciting, too, because you’re never quite sure where it’s going to end up.

      Anecdotal evidence that categorizing and arranging index cards/ideas for a writing project for subsequent writing is one of the most difficult portions of the process.

      Niklas Luhmann subverted portions of this by pre-linking his ideas together either in threads or an outline form as he went.

    4. I’ve also got a vague sense in my head of how they should be organized — that is, what the structure of the book is going to be. This is generally when I write the formal book proposal. I know enough about the topic, now, that I have a good idea of what my central arguments are going to be and how I am going to organize the chapters.

      At what point in the process does one have a conceptualization for the overall outline of what they're writing?

      In cases where it's earlier than others, then heavy linking and organization may not be as necessary.

    5. I continued to use this analog method right up through my Ph.D. dissertation and first monograph. After a scare in the early stages of researching my second monograph, when I thought all of my index cards had been lost in a flood, I switched to an electronic version: a Word doc containing a table with four cells that I can type or paste information into (and easily back up).
    6. I have a very specific method for organizing my research and thoughts whenever I’m writing anything longer than a short article. I learned this method from a teacher in middle school, and I cannot imagine how a human being could write a book any other way.

      Example of someone who learned an index card based commonplace book method for note taking and writing.

    1. https://www.youtube.com/watch?v=b-Wp0sLpnMY

      PVA Glue used in bookbinding, but isn't inexpensive.

      • Tacky glue - okay
      • rubber cement - not great
      • elmer's glue - not great, tears esp. for 2 layers
      • Mod podge - pulls nicely and strong
      • mod podge hard shell - cracks, not great
      • PVA Glue - the best of the group

      Recommendations in order: PVA, Tacky Glue, Mod Podge (regular)

      Brush on top edge and do two coats. Don't get it down between sheets.

  5. Nov 2022
    1. Victor Margolin's note taking and writing process

      • Collecting materials and bibliographies in files based on categories (for chapters)
      • Reads material, excerpts/note making on 5 x 7" note cards
        • Generally with a title (based on visual in video)
        • excerpts have page number references (much like literature notes, the refinement linking and outlining happens separately later in his mapping and writing processes)
        • filed in a box with tabbed index cards by chapter number with name
        • video indicates that he does write on both sides of cards breaking the usual rule to write only on one side
      • Uses large pad of newsprint (roughly 18" x 24" based on visualization) to map out each chapter in visual form using his cards in a non-linear way. Out of the diagrams and clusters he creates a linear narrative form.
      • Tapes diagrams to wall
      • Writes in text editor on computer as he references the index cards and the visual map.

      "I've developed a way of working to make this huge project of a world history of design manageable."<br /> —Victor Margolin

      Notice here that Victor Margolin doesn't indicate that it was a process that he was taught, but rather "I've developed". Of course he was likely taught or influenced on the method, particularly as a historian, and that what he really means to communicate is that this is how he's evolved that process.

      "I begin with a large amount of information." <br /> —Victor Margolin

      "As I begin to write a story begins to emerge because, in fact, I've already rehearsed this story in several different ways by getting the information for the cards, mapping it out and of course the writing is then the third way of telling the story the one that will ultimately result in the finished chapters."<br /> —Victor Margolin

    1. A quick and dirty guide to choosing "slow carbs" (low GLI) and "fast carbs" (high GLI). Purportedly, insulin spikes (from high GLI foods) and prevent amino acids from entering the blood brain barrier. Need to fact-check this

    1. Fifty years ago, coinciding with the centennial of the release of Darwin’s manuscript, author Morse Peckham collected all six editions into a single “variorum” text. Peckham painstakingly created a reference system that denotes the modifications and changes between editions. The text was created by Peckham’s careful enumeration of every sentence from every edition, copied onto index cards; from these cards, he carefully assembled them into a final text.
    1. https://www.youtube.com/watch?v=2ueMHkGljK0

      Robert Greene's method goes back to junior high school when he was practicing something similar. He doesn't say he invented it, and it may be likely that teachers modeled some of the system for him. He revised the system over time to make it work for himself.

      • [x] Revisit this for some pull quotes and fine details of his method. (Done on 2022-11-08)
    2. Origin of Robert Greene's (May 14, 1959 - ) note taking system using index cards:<br /> Greene didn't recall a specific origin of his practices, but did mention that his mom found some index cards at his house from a junior high school class. (Presuming a 12 year old 7th grader, this would be roughly from 1971.) Ultimately when he wrote 48 Laws of Power, he was worried about being overwhelmed with his notes and ideas in notebooks. He naturally navigated to note cards as a solution.

      Uses about 50 cards per chapter.

      His method starts by annotating his books as he reads them. A few weeks later, he revisits these books and notes to transfer his ideas to index cards. He places a theme on the top of each card along with a page number of the original reference.

      He has kept much the same system as he started with though it has changed a bit over time.

      You're either a prisoner of your material or a master of your material.

      This might not be the best system ever created, but it works for me.

      When looking through a corpus of cards for a project, Robert Greene is able to make note of the need to potentially reuse a card within a particular work if necessary. The fact that index cards are inherently mobile within his projects make them easy to move and reuse.

      I haven't heard in either Robert Greene or Ryan Holiday's practices evidence that they reuse notes or note cards from one specific project to the next. Based on all the evidence I've seen, they maintain individual collections for each book project for which they're developing.

      [...] like a chameleon [the index card system is] constantly changing colors or [like] something that's able to change its shape at will. This whole system can change its shape as I direct it.

    3. Robert Greene: (pruriently) "You want to see my index cards?"<br /> Brian Rose: (curiously) Yeah. Can we?? ... This is epic! timestamp

    1. You should also be able to placethe book even more accurately than before in your mental cardcatalogue, for further reference if the occasion should everarise.

      use of "mental card catalogue" as memory

    1. A commonplace book is what a provident poet cannot subsist without, for this proverbial, reason, that "great wits have short memories;" and whereas, on the other hand, poets, being liars by profession, ought to have good memories; to reconcile these, a book of this sort, is in the nature of a supplemental memory, or a record of what occurs remarkable in every day's reading or conversation. There you enter not only your own original thoughts, (which, a hundred to one, are few and insignificant) but such of other men, as you think fit to make your own, by entering them there. For, take this for a rule, when an author is in your books, you have the same demand upon him for his wit, as a merchant has for your money, when you are in his. By these few and easy prescriptions, (with the help of a good genius) it is possible you may, in a short time, arrive at the accomplishments of a poet, and shine in that character[3].

      "Nullum numen abest si sit prudentia, is unquestionably true, with regard to every thing except poetry; and I am very sure that any man of common understanding may, by proper culture, care, attention, and labour, make himself whatever he pleases, except a good poet." Chesterfield, Letter lxxxi.

      See also: https://en.m.wikisource.org/wiki/Page:The_Works_of_the_Rev._Jonathan_Swift,_Volume_5.djvu/261 as a source

      Swift, Jonathan. The Works of the Rev. Jonathan Swift. Edited by Thomas Sheridan and John Nichols. Vol. 5. 19 vols. London: H. Baldwin and Son, 1801.

    1. From the beginning I found myself deeply challenged and stuck — freaked out by the blank page. So I started to use my skills as a filmmaker. I note-carded it. I had the notes above my computer, and I got to do a little “X” when I finished the draft of a chapter; it was this really satisfying moment.

      Erin Lee Carr talks about using index cards to write a book about her father, but her practice sounds more like index cards with headings as a means of structuring a story and not actually writing the entire work out on cards.

    2. <small><cite class='h-cite via'> <span class='p-author h-card'>Billy Oppenheimer</span> in The Notecard System: Capture, Organize, and Use Everything You Read, Watch, and Listen To (<time class='dt-published'>11/03/2022 16:53:44</time>)</cite></small>

    1. Ronald Reagan notecard

    2. One of the big lies notetakers tell themselves is, “I will remember why I liked this quote/story/fact/etc.”

      Take notes for your most imperfect, forgetful future self. You're assuredly not only not going to remember either the thing you are taking notes for in the first place, but you're highly unlikely to remember why you thought it was interesting or intriguing or that clever thing you initially thought of at the same time.

      Capture all of this quickly in the moment, particularly the interesting links to other things in your repository of notes. These ideas will be incredibly difficult, if not impossible, for one to remember.

    3. He has a warehouse of notecards with ideas and stories and quotes and facts and bits of research, which get pulled and pieced together then proofread and revised and trimmed and inspected and packaged and then shipped.

      While the ancients thought of the commonplace as a storehouse of value or a treasury, modern knowledge workers and content creators might analogize it to a factory where one stores up ideas in a warehouse space where they can be easily accessed, put into a production line where those ideas can be assembled, revised, proofread, and then package and distributed to consumers (readers).


    4. If you are like Lebron James or Paul Simon, if you were born with a gift for recall, you might not need a note-taking system.

      I would suggest that this is wholly wrong as both of the memories described are honed for specific situations and not broadly applicable.

      Even those with good natural memories as well as those with significant mnemonic practices can benefit from a structured note taking practice.

    5. In this article, I am going to explain my adapted version of the notecard system.

      Note that he explicitly calls out that his is an adapted version of a preexisting thing--namely a system that was taught to Ryan Holiday who was taught by Robert Greene.

      Presumably there is both some economic and street cred value for the author/influencer in claiming his precedents.

      It's worth noting that he mentions other famous users, though only the smallest fraction of them with emphasis up front on his teachers whose audience he shares financially.

    6. The Notecard System

      This is almost pitched as a product with the brand name "The Notecard System".

    1. "If the Reagans' home in Palisades (Calif.) were burning," Brinkley says, "this would be one of the things Reagan would immediately drag out of the house. He carried them with him all over like a carpenter brings their tools. These were the tools for his trade."

      Another example of someone saying that if their house were to catch fire, they'd save their commonplace book (first or foremost).

    1. It's not an exaggeration: Nearly every dollar I've made in my adult life was earned first on the back or front (or both) of an index card.Everything I do, I do on index cards.
    1. https://www.instagram.com/p/CeWV6xBuZUN/?hl=en

      Ryan Holiday in the past has made custom 4 x 6" index cards for taking notes for his individual projects.

      Pictured: A custom slip with 11 light gray lines, small margins all around, and at the top the printed words: "Courage. Temperance. Justice. Wisdom."

      <small><cite class='h-cite via'> <span class='p-author h-card'>Billy Oppenheimer, research assistant to Ryan Holiday</span> in The Notecard System: Capture, Organize, and Use Everything You Read, Watch, and Listen To - Billy Oppenheimer (<time class='dt-published'>11/03/2022 16:53:44</time>)</cite></small>

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      I used to do this sort of practice before, but I used buckslips instead.

    1. raphy. Surely the fault of that savant was not neglecbut over-confidence in the virtue of the fiche, and the true morthat there is no necessary salvation in the fiche and the card-indTh

      Surely the fault of that savant was not neglect, but over-confidence in the virtue of the fiche [index card], and the true moral is that there is no necessary salvation in the fiche and the card-index [aka zettelkasten].

      Here the author is referencing part of the preface of Anatole France's book Penguin Island (1908) where a scholar drowns in a whirlpool of index cards.

      see: https://hypothes.is/a/rYHu0FQZEe2mm4_z4pvWLw

  6. Oct 2022
    1. On the whole, his efficiency probablyreduced the time required for taking and filing notes to the amountother historians spent in note-taking alone. What he wrote in hisnotes was brief, and yet specific enough so that he saved himself thejob of searching at length for what he had read. His mind was freeto reflect and appraise.

      Earl Pomeroy suggests that Paxson's note taking method freed his mind to better reflect and appraise his work. This allows a greater efficiency of work, particularly when it comes to easier search and recall as well as the overall process which becomes easier through practice.

    2. he also put the scraps to-gether into patterns that fascinated his students.
    3. None of these notes wasever used in his writing; probably they were taken with no thoughtof specific use, but out of absorption in the American scene.

      It's quite likely that one will take a large number of notes with no immediate goal or plan for use and this is completely acceptable. Often these notes go towards the more immediate goal of forming one's own understanding and setting of a broader tableau for material one will write in the future.

    4. he three-by-five inch slipsof thin paper eventually filled about eighty wooden file drawers.And he classified the notes day by day, under topical-chronologicalheadings that eventually extended from 4639 B.C. to 1949, theyear after his death.

      Frederic L. Paxson kept a collection of 3 x 5 " slips of thin paper that filled eighty wooden file drawers which he organized using topical-chronologic headings spanning 4639 BCE to 1949.

    1. I feel sympathy for Robert Southey, whose excerpts from his voracious reading were posthumously published in four volumes as Southey’s Common-Place Book. He confessed in 1822 that,Like those persons who frequent sales, and fill their houses with useless purchases, because they may want them some time or other; so am I for ever making collections, and storing up materials which may not come into use till the Greek Calends. And this I have been doing for five-and-twenty years! It is true that I draw daily upon my hoards, and should be poor without them; but in prudence I ought now to be working up these materials rather than adding to so much dead stock.
    2. Since Anatole France’s description in Penguin Island of the scholar drowned by an avalanche of his own index cards, it has been hard to take them seriously.

      In Penguin Island, Anatole France describes a scholar drowned by an avalanche of their own index cards!

    3. Before the Xerox machine, this was a labour-intensive counsel of perfection; and it is no wonder that many of the great 19th-century historians employed professional copyists.

      According to Keith Thomas, "many of the great 19th-century historians employed professional copyists" as a means of keeping up with filing copies of their note slips under multiple subject headings.

    1. Les murs du cabinet de travail, le plancher, le plafond même portaient des liasses débordantes, des cartons démesurément gonflés, des boîtes où se pressait une multitude innombrable de fiches, et je contemplai avec une admiration mêlée de terreur les cataractes de l'érudition prêtes à se rompre. —Maître, fis-je d'une voix émue, j'ai recours à votre bonté et à votre savoir, tous deux inépuisables. Ne consentiriez-vous pas à me guider dans mes recherches ardues sur les origines de l'art pingouin? —Monsieur, me répondit le maître, je possède tout l'art, vous m'entendez, tout l'art sur fiches classées alphabétiquement et par ordre de matières. Je me fais un devoir de mettre à votre disposition ce qui s'y rapporte aux Pingouins. Montez à cette échelle et tirez cette boîte que vous voyez là-haut. Vous y trouverez tout ce dont vous avez besoin. J'obéis en tremblant. Mais à peine avais-je ouvert la fatale boîte que des fiches bleues s'en échappèrent et, glissant entre mes doigts, commencèrent à pleuvoir. Presque aussitôt, par sympathie, les boîtes voisines s'ouvrirent et il en coula des ruisseaux de fiches roses, vertes et blanches, et de proche en proche, de toutes les boîtes les fiches diversement colorées se répandirent en murmurant comme, en avril, les cascades sur le flanc des montagnes. En une minute elles couvrirent le plancher d'une couche épaisse de papier. Jaillissant de leurs inépuisables réservoirs avec un mugissement sans cesse grossi, elles précipitaient de seconde en seconde leur chute torrentielle. Baigné jusqu'aux genoux, Fulgence Tapir, d'un nez attentif, observait le cataclysme; il en reconnut la cause et pâlit d'épouvante. —Que d'art! s'écria-t-il. Je l'appelai, je me penchai pour l'aider à gravir l'échelle qui pliait sous l'averse. Il était trop tard. Maintenant, accablé, désespéré, lamentable, ayant perdu sa calotte de velours et ses lunettes d'or, il opposait en vain ses bras courts au flot qui lui montait jusqu'aux aisselles. Soudain une trombe effroyable de fiches s'éleva, l'enveloppant d'un tourbillon gigantesque. Je vis durant l'espace d'une seconde dans le gouffre le crâne poli du savant et ses petites mains grasses, puis l'abîme se referma, et le déluge se répandit sur le silence et l'immobilité. Menacé moi-même d'être englouti avec mon échelle, je m'enfuis à travers le plus haut carreau de la croisée.

      France, Anatole. L’Île Des Pingouins. Project Gutenberg 8524. 1908. Reprint, Project Gutenberg, 2005. https://www.gutenberg.org/cache/epub/8524/pg8524.html

      Death by Zettelkasten!!

      (Coming soon to a theater near you...)

      In the preface to the novel Penguin Island (L'Île des Pingouins. Calmann-Lévy, 1908) by Nobel prize laureate Anatole France, a scholar is drowned by an avalanche of index cards which formed a gigantic whirlpool streaming out of his card index (Zettelkasten).

      Link to: Historian Keith Thomas has indicated that he finds it hard to take using index cards for excerpting and research seriously as a result of reading this passage in the satire Penguin Island.<br /> https://hypothes.is/a/rKAvtlQCEe2jtzP3LmPlsA

      Translation via: France, Anatole. Penguin Island. Translated by Arthur William Evans. 8th ed. 1908. Reprint, New York, NY, USA: Dodd, Mead & Co., 1922. https://www.google.com/books/edition/Penguin_Island/6UpWAvkPQaEC?hl=en&gbpv=0

      Small changes in the translation by me, comprising only adding the word "index" in front of the occurrences of card to better represent the historical idea of fiches used by scholars in the late 1800s and early 1900s, are indicated in brackets.

      The walls of the study, the floor, and even the ceiling were loaded with overflowing bundles, paste board boxes swollen beyond measure, boxes in which were compressed an innumerable multitude of small [index] cards covered with writing. I beheld in admiration mingled with terror the cataracts of erudition that threatened to burst forth.

      “Master,” said I in feeling tones, “I throw myself upon your kindness and your knowledge, both of which are inexhaustible. Would you consent to guide me in my arduous researches into the origins of Penguin art?"

      “Sir," answered the Master, “I possess all art, you understand me, all art, on [index] cards classed alphabetically and in order of subjects. I consider it my duty to place at your disposal all that relates to the Penguins. Get on that ladder and take out that box you see above. You will find in it everything you require.”

      I tremblingly obeyed. But scarcely had I opened the fatal box than some blue [index] cards escaped from it, and slipping through my fingers, began to rain down.

      Almost immediately, acting in sympathy, the neighbouring boxes opened, and there flowed streams of pink, green, and white [index] cards, and by degrees, from all the boxes, differently coloured [index] cards were poured out murmuring like a waterfall on a mountain-side in April. In a minute they covered the floor with a thick layer of paper. Issuing from their in exhaustible reservoirs with a roar that continually grew in force, each second increased the vehemence of their torrential fall. Swamped up to the knees in cards, Fulgence Tapir observed the cataclysm with attentive nose. He recognised its cause and grew pale with fright.

      “ What a mass of art! ” he exclaimed.

      I called to him and leaned forward to help him mount the ladder which bent under the shower. It was too late. Overwhelmed, desperate, pitiable, his velvet smoking-cap and his gold-mounted spectacles having fallen from him, he vainly opposed his short arms to the flood which had now mounted to his arm-pits . Suddenly a terrible spurt of [index] cards arose and enveloped him in a gigantic whirlpool. During the space of a second I could see in the gulf the shining skull and little fat hands of the scholar; then it closed up and the deluge kept on pouring over what was silence and immobility. In dread lest I in my turn should be swallowed up ladder and all I made my escape through the topmost pane of the window.

    1. As an example, in The Crown season 1 episode 4 “Act of God” (Netflix, 2016) there is a scene portraying former British Prime Minister Clement Atlee in his office in which he is prominently bookended in the background by two four drawer card indexes: one 3 x 5″ and the other 4 x 6″.

      This example comes directly from my notes: https://hypothes.is/a/Cz7e_lHKEe2Qv79IbEgmNw

    1. I can't quite grasp this concept, although it seems interesting for my specific case. Isn't the index box supposed to be organized by alphabetical order? How can personal notes be placed right in such an order?

      los2pollos reply to: https://www.reddit.com/r/antinet/comments/y5un81/comment/it667sq/?utm_source=reddit&utm_medium=web2x&context=3

      There are a wide variety of methods of organizing and sorting one's note cards including by topic (usually alphabetical), by date, by idea, by author, by title, etc.

      If you're using it as a diary, you'd probably keep that subsection in order by date written, and then potentially have it cross indexed by subject if those things were important to you.

      If you kept other information like mood, health, activities, exercise, glasses of water per day (for example) on them, you could resort and re-order them by those data as well if you liked. And naturally, this ability to resort/reorder one's notes has been one of the greatest features and affordances to these systems historically.

    2. Memorization is not about a language, rather about a feeling you have about information. In other words, how deep it resonates with your life. In this sense, I was also exploring the idea that having an Antinet Zettelkasten is almost like having a "diary", not for your personal feelings or emotions, rather for exploring the way in which your entire mind and heart work together over the years in which we discover the world. For me, exploring subjects and studying is an internal discovery.

      in reply to los2pollos<br /> https://www.reddit.com/r/antinet/comments/y5un81/comment/it4jy3c/?utm_source=reddit&utm_medium=web2x&context=3

      You're not the only one to think of a card index as diary. Roland Barthes practiced this as well. His biographer Tiphaine Samoyault came to call it his fichierjournal.

    1. Andere Sammlungen sind ihrem Verwendungszweck nie zugeführt worden. Der Germanist Friedrich Kittler etwa legte Karteikarten zu allen Farben an, die dem Mond in der Lyrik zugeschrieben worden sind. Das Buch dazu könnte jemand mit Hilfe dieser Zettel schreiben.

      machine translation (Google):

      Other collections have never been used for their intended purpose. The Germanist Friedrich Kittler, for example, created index cards for all the colors that were ascribed to the moon in poetry. Someone could write the book about it with the help of these slips of paper.

      Germanist Friedrich Kittler collected index cards with all the colors that were ascribed to the moon in poetry. He never did anything with his collection, but it has been suggested that one could write a book with his research collection.

    1. There is a box stored in the German Literature Archive in Marbach, thewooden box Hans Blumenberg kept in a fireproof steel cabinet, for it con-tained his collection of about thirty thousand typed and handwritten notecards.1

      Hans Blumenberg's zettelkasten of about thirty thousand typed and handwritten note cards is now kept at the German Literature Archive in Marbach. Blumenberg kept it in a wooden box which he kept in a fireproof steel cabinet.

    1. https://www.loom.com/share/a05f636661cb41628b9cb7061bd749ae

      Synopsis: Maggie Delano looks at some of the affordances supplied by Tana (compared to Roam Research) in terms of providing better block-based user interface for note type creation, search, and filtering.

      These sorts of tools and programmable note implementations remind me of Beatrice Webb's idea of scientific note taking or using her note cards like a database to sort and search for data to analyze it and create new results and insight.

      It would seem that many of these note taking tools like Roam and Tana are using blocks and sub blocks as a means of defining atomic notes or database-like data in a way in which sub-blocks are linked to or "filed underneath" their parent blocks. In reality it would seem that they're still using a broadly defined index card type system as used in the late 1800s/early 1900s to implement a set up that otherwise would be a traditional database in the Microsoft Excel or MySQL sort of fashion, the major difference being that the user interface is cognitively easier to understand for most people.

      These allow people to take a form of structured textual notes to which might be attached other smaller data or meta data chunks that can be easily searched, sorted, and filtered to allow for quicker or easier use.

      Ostensibly from a mathematical (or set theoretic and even topological) point of view there should be a variety of one-to-one and onto relationships (some might even extend these to "links") between these sorts of notes and database representations such that one should be able to implement their note taking system in Excel or MySQL and do all of these sorts of things.

      Cascading Idea Sheets or Cascading Idea Relationships

      One might analogize these sorts of note taking interfaces to Cascading Style Sheets (CSS). While there is the perennial question about whether or not CSS is a programming language, if we presume that it is (and it is), then we can apply the same sorts of class, id, and inheritance structures to our notes and their meta data. Thus one could have an incredibly atomic word, phrase, or even number(s) which inherits a set of semantic relationships to those ideas which it sits below. These links and relationships then more clearly define and contextualize them with respect to other similar ideas that may be situated outside of or adjacent to them. Once one has done this then there is a variety of Boolean operations which might be applied to various similar sets and classes of ideas.

      If one wanted to go an additional level of abstraction further, then one could apply the ideas of category theory to one's notes to generate new ideas and structures. This may allow using abstractions in one field of academic research to others much further afield.

      The user interface then becomes the key differentiator when bringing these ideas to the masses. Developers and designers should be endeavoring to allow the power of complex searches, sorts, and filtering while minimizing the sorts of advanced search queries that an average person would be expected to execute for themselves while also allowing some reasonable flexibility in the sorts of ways that users might (most easily for them) add data and meta data to their ideas.

      Jupyter programmable notebooks are of this sort, but do they have the same sort of hierarchical "card" type (or atomic note type) implementation?

    1. Sein Nachlass umfasst u. a. Notizen zu allen wichtigen naturphilosophischen Fragen seiner Zeit und Briefwechsel mit seinen Schülern, die sich an den verschiedenen Universitäten des protestantischen Deutschlands und der Niederlande aufhielten. Er schrieb Literaturauszüge, Beobachtungsmitschriften, Vorlesungsvorbereitungen und anderes mehr auf kleine Zettel, von denen heute noch knapp 42.000 in der Stabi erhalten sind.

      machine translation (Google):

      His estate includes i.a. Notes on all important natural-philosophical questions of his time and correspondence with his students who stayed at the various universities in Protestant Germany and the Netherlands. He wrote excerpts from literature, observation notes, lecture preparations and other things on small pieces of paper, of which almost 42,000 are still preserved in the Stabi today.

      Die Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky (Stabi) houses the almost 42,000 slips of paper from Joachim Jungius' lifetime collection of notes which include excerpts from his reading, observational notes, his lecture preparations, and other miscellaneous notes.

    1. https://www.youtube.com/watch?v=dU7efgGEOgk

      I wish he'd gotten into more of the detail of the research and index card making here as that's where most of the work lies. He does show some of his process of laying out and organizing the cards into some sort of sections using 1/3 cut tabbed cards. This is where his system diverges wildly from Luhmann's. He's now got to go through all the cards and do some additional re-reading and organizational work to put them into some sort of order. Luhmann did this as he went linking ideas and organizing them up front. This upfront work makes the back side of laying things out and writing/editing so much easier. It likely also makes one more creative as one is regularly revisiting ideas, juxtaposing them, and potentially generating new ones along the way rather than waiting until the organization stage to have some of this new material "fall out".

    1. Does anyone else work in project-based systems instead? .t3_y2pzuu._2FCtq-QzlfuN-SwVMUZMM3 { --postTitle-VisitedLinkColor: #9b9b9b; --postTitleLink-VisitedLinkColor: #9b9b9b; --postBodyLink-VisitedLinkColor: #989898; }

      reply to u/m_t_rv_s__n https://www.reddit.com/r/Zettelkasten/comments/y2pzuu/does_anyone_else_work_in_projectbased_systems/

      Historically, many had zettelkasten which were commonplace books kept on note cards, usually categorized by subject (read: "folders" or "tags"), so you're not far from that original tradition.

      Similar to your work pattern, you may find the idea of a "Pile of Index Cards" (PoIC) interesting. See https://lifehacker.com/the-pile-of-index-cards-system-efficiently-organizes-ta-1599093089 and https://www.flickr.com/photos/hawkexpress/albums/72157594200490122 (read the descriptions of the photos for more details; there was also a related, but now defunct wiki, which you can find copies of on Archive.org with more detail). This pattern was often seen implemented in the TiddlyWiki space, but can now be implemented in many note taking apps that have to do functionality along with search and tags. Similarly you may find those under Tiago Forte's banner "Building a Second Brain" to be closer to your project-based/productivity framing if you need additional examples or like-minded community. You may find that some of Nick Milo's Linking Your Thinking (LYT) is in this productivity spectrum as well. (Caveat emptor: these last two are selling products/services, but there's a lot of their material freely available online.)

      Luhmann changed the internal structure of his particular zettelkasten that created a new variation on the older traditions. It is this Luhmann-based tradition that many in r/Zettelkasten follow. Since many who used the prior (commonplace-based) tradition were also highly productive, attributing output to a particular practice is wrongly placed. Each user approaches these traditions idiosyncratically to get them to work for themselves, so ignore naysayers and those with purist tendencies, particularly when they're new to these practices or aren't aware of their richer history. As the sub-reddit rules indicate: "There is no [universal or orthodox] 'right' way", but you'll find a way that is right for you.

    1. 4. Cite Card Icon : Hat (something above you)Tag : 5th block Quotation, cooking recipe from book, web, tv, anything about someone else’s idea is classified into this class. Important here is distinguishing “your idea (Discovery Card)” and “someone else’s idea (Cite Card)”. Source of the information must be included in the Cite Card. A book, for example, author, year, page(s) are recorded for later use.

      Despite being used primarily as a productivity tool the PoIC system also included some features of personal knowledge management with "discovery cards" and "citation cards". Discovery cards were things which contained one's own ideas while the citation cards were the ideas of others and included bibliographic information. Citation cards were tagged on the 5th block as an indicator within the system.

      Question: How was the information material managed? Was it separate from the date-based system? On first blush it would appear not, nor was there a subject index which would have made it more difficult for one to find data within the system.

    1. Record Card Icon : CircleTag : 2nd block Diary, note, account, health, weather, cook, any kind of records about us belong to this class. An individual record is so tiny and less informative. However, from view point of long time span, these records provide us a useful information because we will find a certain "pattern" between them. A feedback from the pattern improves our daily life.
    1. Discovery Card Icon : Electric Bulb (lightning)Tag : 3rd block Things from my brain, mind, spirit, anything emerge from inside me, are classified into this class. This is the most important and enjoyable cards among the Four Cards. You will see your discoveries emerges in your mind like a water from spring. In fact, the 80% of index cards in my dock is dominated by this Discovery Card.

      These are more similar to zettelkasten and commonplacing traditions. They comprise the majority of the system.