Hyped BTC will be naturally cashed out in alts. When people begin to realize that BTC is already overvalued, they will begin buying alts to maximize their profits.
yes. Historically this is what has happened. But I think we are a long way from serious volume profit selloff of BTC. I think we will have to be well beyond current ATH. And the funds will flow to the strongest alts. Probably just a few.