It's quite funny how every single time there's a post on Reddit that says something along the lines of "if you could go back in time / tell your past self something / etc"
The most upvoted comment is nearly always "buy Bitcoin" or in today's case, "Bitcoin peaks 65k"
I think one of bitcoins biggest hurdles to mass adoption will be the fact almost everyone feels like they've already missed the boat.
It will take many people a long time to figure out that the "next bitcoin" is Bitcoin.