Goldman Sacks has a fund for its wealthy investors.
So, I see a lot of USA people coming into the market slowly for now and more as ETFs are approved.
To me this means that Alt season will be all year round for years to come.
In the longer term it could mean that less money goes into stocks.
I do agree that there will be less "people" that go into stocks, don't know about the money part though. The reason for that is simple, there are more people who are "not rich", obviously there are more people who are poor, but there are also less and less rich people as well, the top 1% is getting richer and richer which comes at the expense of people who were middle class, first it was below middle class that became about as poor as you can drop from there, still not poverty but poor, then middle class dropped significantly, and now a bit above middle class lives the life of below middle class of 20 years ago.
This means all these people could be getting into crypto and that is why "number of people" could increase in crypto a lot and decrease in stocks. However the top 1% is getting so insanely rich that "money" that goes into stocks could still keep going up.