Debatably, a big issue with Bitcoin is that there is no reliable/trustworthy way to short sell it (I could be misunderstood). I think academic study has suggest

Debatably, a big issue with Bitcoin is that there is no reliable/trustworthy way to short sell it (I could be misunderstood). I think academic study has suggested that markets that can be shorted are less susceptible to bubbles than those that aren't. If there was a ready pool of people ready to trade a view that the Bitcoin price should be lower than it is, perhaps there would be less volatility/exuberance?