So - bubbles can unpop several times? I think the argument is - if it's a bubble, then when it pops, it's over. You can't pick up the pieces. If it's got real legs, then a large drawdown is more in lines of a correction. BTC clearly has some value, since it keeps getting back on its feet.
You are wrong i have seen penny stocks to have multi bubbles , they have a come back to pop and burst again . And it takes years .