kind of - i think this maybe overstates the universality of financial culture pre BTC/GME/SPCX. plus even in a DCF framework people will always come up with wildly different probability weighted cash flows. the market and clearing prices have always been a crazy expression of a bunch of value theories and various forms of systems inhibitions (regulatory stuff, technical reasons participants can't act as they'd like, etc).
there is definitely faster action/coordination than ever before. many of these examples involve weird price book mechanics where a relatively thin trading values a huge share base, also not esp new. there probably is some amount of HODL-eque signalling membership/meaning but even that class of mechanic has probably been a player even in the last 50 years of high finance, and certainly in earlier less technical eras.
in the absence of crystal balls, narrative is always kind of a fallback for expectations and thus valuations. dot-com, railways, treasure prospecting ventures...
imo same old capitalism, in a different technological/social/political environment for sure. and definitely still single universe vs multiverse