Seems kinda hard to believe at this point, no?
There have been SEVERAL crashes that have wiped out the market and it's the reason there are so few players, the rest of them went bankrupt after periods of over-expansion. (in the 80s caused by Japan, in 1997, in 2001ish after the dotcom bust)
You're even calling it a bubble so it's not exactly "hard to believe" it will pop.