Microsoft is worth $4T, so if you buy one MSFT share only ~3% of that is invested in OpenAI. Even if OpenAI outperforms everyone's expectations (which at this point are already sky high), a tiny swing in some other Microsoft division will completely erase your gains.
Markets trade on a magical growth valuation. Nothing you said matters at all at the moment and won’t for about 5 or so years. People are going to eat shit over and over when they keep talking like this, just look at what NVDA did today. It’s not going to stop.
Fiat currencies are becoming meme tokens at this point. I think we are in a hyperinflation era and consumer price growth will simply have to catch-up to the stock market growth rate because wealth isn't being created right now, it's just being inflated.
All of those who are investing in stock market and thinking they are becoming rich might just realize that those were the paper gains when they will still not be able to afford anything with all the big numbers in their investment accounts.
5 years is a pretty long time to predict with confidence. Definitely agree that "the markets can remain irrational longer than you can remain solvent", but 5 years would be unusually long if you believe we're already in a bubble.