The sad part about it, and one that has become a bit of a theme with his postings, is that pg stopped being intellectually honest in his online writings at some point over the last two decades.

His post here in particular violates the fundamental principles of HN in that he does not engage with the argument at all.

The argument isn't that it's impossible to become a billionaire legally, the argument is that it's impossible to become a billionaire in a moral way, though that's more of a problem of the system than it is necessarily one at the individual level. A just and moral system would assign the value being created in such a way that becoming a billionaire would be essentially impossible.

Yet pg never even acknowledged the possibility that that might have been the argument.