[Retric]

I think your vastly overstating what videos people put online.

I think woodworking is hard to qualify. So, let's simplify.

1) A master craftsman video demonstrating how to make an Italian style flat bread oven from someone that spent ~15+ years learning and building them.

2) One of those small but highly accurate mechanical clocks that's accurate enough for navigation at sea.

3) A European ed: (English) style saddle made by a craftsman, as in someone that made and sold 100 others before it.

I am sure there are at least a few hundred people with those skills world wide, but actually finding a detailed video made by one of them online seems much harder. As in something that's good enough to learn from not just advertising or a 'how it's made' video showing some highlights.

It's 3:30 EST on Friday. Let's give it 24 hours. ;)

[Zikes]

Moving the goalposts to the furthest conceivable distance isn't going to prove anything to anybody. Nobody claimed you could completely master a trade skill just from watching YouTube videos.

[Retric]

The parent post (TeMPOraL) said:

have access to the best knowledge and experience entire humanity has produced

Sure, you can find plenty of videos on how make a hard boiled egg, apply tile, or do a card trick... But, that statement seems way over the top.

PS: Though, this is one case where I would haply be proved wrong.