Alan pointed to the same notion elsewhere. Blogging should be more about open ended curiosity and holding questionsm than about explaining or sharing ones coherent worldview or current truth about something. This with an eye to the former being a better prompt for conversations. I agree that conversations (distributed ones, taking place over multiple blogs) are a key thing in blogging. I also believe in the 'obligation to explain' as ruk.ca says: if you have figured something out, created something, you have a civic duty to explain it so others may find their way to their solution faster. (this annotation is also meant as a test to see how it ends up in hypothes.is and gets sync'd or not to my notes locally.

I recognise the statistic, but the conclusion that companies lives are getting shorter doesn't follow without further evidence. There are def many more companies than before (more population plus increased digitisation and mobilithy = more companies), so the bulk of existing companies is younger than before. Some will be successful enough to be a Fortune 500 faster than before, driving down the average age of companies in that list. It doesn't mean that every company dropping out of the Fortune 500 ceases to exist. It may continue to exist in the exact same way as the longest living companies mentioned elsewhere in the article. In other words, they may be doing what the article is counseling to do, turning this factoid into the opposite of the argument it is now used as. In short: you can't say this unless you have data about the discontinued companies, both 'nowadays' and in previous 2-3 centures.