the dot com bubble also had people saying it was a bubble and it was in fact a bubble
I think this bubble, like the dot com bubble, just means an overinvestment in something that is truly going to be life changing. Bubbles like this pop when enough time has passed for investors to start analyzing cash flows and they realize they won't be able to get the returns they were hoping for / won't be able to get the returns fast enough and start diverting away + selling