In my opinion BTC eventually decouple from SP500 it means Finance 1.0 migrates to Finance 2.0. Probably in the short term a big correction after paypal hype disappear. If Paypal provide new market from new members it would be the mother of all big run, bigger than 2017. Probably the crypto overall market cap would touch the 1 trillion at any time during 2021. Not financial advise...but strong hold those altcoins.