Earlier quoted context omitted.
I don't see how the wealth of one person, who's wealth is mainly shares in probably the most successful company in the US right now, indicates that we are in a bubble.
The guy made 100k$ off of each of his workers while abusing them this year alone, it is fucking outrageous.
Which means it's paper wealth. Which means there's no way he could turn any significant fraction of that into USD or any other form of value without obliterating the value.