I don’t trust the stability of Bitcoin. I trust it even less than fiat U.S. dollars. I see mining bitcoin as wasting electricity to produce… well, what does “mining” actually turn those gigawatt hours into? Isn’t it simply faith in it’s value by some subset of the worlds population? What if people start losing their faith? Doesn’t the value of Bitcoin decrease exponentially with this loss of faith? Once some sufficiently large number of people lose faith isn’t there a high likelihood of an avalanche of people losing faith? Isn’t it likely Bitcoin will go down in the history books as another Tulip bulb or Mississippi bubble?
There is also the risk of one or more countries declaring it illegal and reducing it’s trading value to near zero in that country.
It turns out there are far more subtle yet greater or equal threats to it’s value: Bitcoin’s Greatest Feature Is Also Its Existential Threat: The cryptocurrency depends on the integrity of the blockchain. But China’s censors, the FBI, or powerful corporations could fragment it into oblivion.