[throwaway218649]

> You can't prove it's impossible to do what he did today. Others are actively doing it.

There is a whole genre of get-rich-quick scammers claiming that exact thing:

https://www.cnet.com/news/amazon-scam-lawsuit-bowser-washing...

https://www.theatlantic.com/technology/archive/2019/01/men-p...

Just because something is possible does not mean it is common. Why didn't all the hard-working software entrepreneurs from the 1980s end up like Bill Gates? Discounting luck and good timing leads to the Horatio Alger fallacy.