7 Matching Annotations
  1. Jul 2024
    1. for - economic growth - physical limits to - reductio ad absurdum - physical absurdity of continuing current energy and waste heat trends into the near future

      paper details - title - Limits to Economic Growth - author - Thomas W. Murphy Jr. - date - 21 July, 2022 - publication - Nature Physics, comment, online - https://doi.org/10.1038/s41567-022-01652-6

      summary - Physicist Thomas W. Murphy employs reductio ab adsurdium logic to prove the fallacy of the assumptions of his argument - In this case, the argument is that we can indefinitely continue to sustain economic growth at rates that have held steady at about 2-3% per annum since the early 1900s. - Using both idealistic and simplified energy and waste heat calculations of energy and waste heat compounding at 2-3% per annum (or 10x per century), Murphy shows the absurd conclusions of continuing these current trends of energy and waste heat emissions on a global scale. - The implications are that physics and thermodynamics will naturally constrain us to plateau to a steady state economy in which the majority of economic activity needs to not depend on physically intensive

      from - Planet Critical podcast - 6th Mass Extinction - interview with science journalist Peter Brannen - https://hyp.is/66oSJD-AEe-rN08IjlMu5A/docdrop.org/video/cP8FXbPrEiI/

    2. An examplein the energy domain demonstrates theabsurdity of indefinite growth in the physicalrealm.

      for - absurdity of indefinite economic growth - energy projection example of recent energy trends

      -absurdity of indefinite economic growth - energy projections - Energy growth has typically been 2–3% per year since early 1900's. - This is approximately equivalent to 10x each century - Present-day energy output is 18 TW and extrapolates to - - approx.100 TW in 2100, - approx. 1,000 TW in 2200, etc. - In 400 years, from today, we would exceed the total solar power incident on Earth - In 1300 years from today, we would exceed the entire output of the Sun in all directions - In 2400 years from today, we would exceed the energy output of all 100 billion stars in the Milky Way galaxy - This last jump is made impossible by the fact that even light cannot cross the galaxy in fewer than 100,000 years. - Hence, physics puts a hard limit on how long our energy growth enterprise could possibly continue

    3. Another way to frame physicallimitations to growth is in terms of wasteheat, which is the end product of nearlyall energetic utilization on Earth.

      for - absurdity of indefinite economic growth - waste heat projection example of recent waste heat trends

      absurdity of indefinite economic growth - waste heat projection example of recent waste heat trends - At present, the waste heat term is about four orders of magnitude smaller than the solar term. - But at a growth factor of ten per century, they would reach parity in roughly 400 years. - Indeed, the surface temperature of Earth would reach the boiling point of water (373 K) in just over 400 years under this relentless prescription.

  2. Jan 2022
    1. Reconstructing constructivism: Causal models, Bayesian learning mechanisms and the theory theory

      Is there any meaningful purpose to having students like us read such an advanced, niche article? It seems not. Even with a background in psychology (BA) I found this article to be effectively meaningless due to the high concentration of advanced content. I feel like I have exactly zero ground to challenge any claims herein. Even after the Module 2 readings. Anyone else?

  3. Jan 2019
    1. if to do thatis human, if that's what it tak§, tnen I am a human being after all. 'Fully, freely, gladly, for tneficst time.

      I have to bring up James Cone and Albert Camus again -- but this time I'm reminded of Camus' The Rebel) and this paragraph from Cone's Black Power and Black Theology: "The crucial question, then, for the black man, is 'How should I respond to a world which defines me as a nonperson?' That he is a person is beyond question, not debatable. But when he attempts to relate as a person, the world demands that he respond as a thing. In this existential absurdity, what should he do? Should he respond as he knows himself to be, or as the world defines him?" Rebellion is what Cone, Camus, and Le Guin decide to do when they redefine what it means to be a person, to be human.

    1. We regularly, in the interests of Plato-worship, disembody language and reason, with the narrow-mindedness Mark Johnson points out in an important recent book, The Body in the Mindl3 Our persistent evasion of the "Q" question makes for a great deal of self-centered, self-serving preaching and a great deal of self-satisfied practice. We do sometimes follow that master of contemptuous, self-satisfied self-absorp-tion, the Platonic Socrates, closely indeed.

      This reminds me of Albert Camus' thoughts on absurdity, and what James Cone says in his book Black Theology and Black Power: "All aspects of this society have participated in the act of enslaving blacks, extinguishing Indians, and annihilating all who question white society's right to decide who is human....Absurdity arises as the black man seeks to understand his place in the white world. The black man does not view himself as absurd; he views himself as human. But as he meets the white world and its values, he is confronted with an almighty No and is defined as a thing. This produces the absurdity."

  4. Apr 2017