> There are plenty of people who have managed to do this, from fairly normal tech jobs.

Yeah, but there also isn’t enough wealth in the system for everyone to do this.

Like suppose that a) we’re now at a reasonably correct valuation for Nvidia b) assume a hypothetical where everyone in the US had plowed all of their savings into Nvidia in 2015. Result: The market cap of Nvidia is still $6 trillion, and the median American owns less than $10k in Nvidia stock.