For all practical purposes, it is literally infinite. You won't be able to go through the entirety of YouTube in a single lifetime, and that's just one channel

For all practical purposes, it is literally infinite. You won't be able to go through the entirety of YouTube in a single lifetime, and that's just one channel of distributed knowledge. And new channels appear every day, somewhere on the global network. The firehose will never stop, the network is effectively an infinite source of content. > what about the cited evidence that, correcting for other factors I think the evidence is flimsy that "the other factors" can realistically be corrected for. In terms of access to resources, networking chances, free time etc etc, the aristocrats of the past would have been effectively unbeatable regardless of education methods. They could have powered through the infamous 10,000 hours in a couple of years, without any tutoring, to then spend the rest of their lives getting recognised as geniuses by a minuscule audience of a few hundred individuals - whose opinion determined everybody else's view of them, effectively unchallenged.