I'd agree with this sentiment.<p>Stocks have tangible assets that generate earnings to justify their investment. Bitcoin, however, generates no real returns beyond its exploding popularity resulting in a higher price. While that doesn't automatically doom its fate (see: traditional currency pairs), Bitcoin is different in that its only real use so far is as an alternative bank account. It will likely remain this way until people can live their lives on Bitcoin in the way people live their lives on a traditional, centralized currency. Many people who simply use it as a bank account may deposit their money for a long period of time, resulting in a sustainable price; for simplicity's sake, we can give the benefit of the doubt and assume that 100% of those looking for an alternative bank rather than an investment will hold it indefinitely.<p>The question is: Of those pushing the price from ~$750 to ~$10,000 in one year, after several years of stability in the ~$500 area, how many are looking to hold it as a bank account alternative, and how many are looking at it as an investment to eventually sell for a profit? Given the trajectory, it's hard to believe individuals are adopting it this rapidly for purposes other than investment; it seems like this 'mainstream adoption' is really just primarily mainstream investment. Is it sustainable when the majority of people are just buying in expectation of others buying? With companies like TSLA it can be sustainable, as investors believe that future earnings will justify the valuation. Here, there's nothing but a hope that others will buy because the price keeps going up.<p>The only way this bubble doesn't pop is if the money being pumped into Bitcoin results in commercial adoption as a viable currency, however that seems unlikely in the meantime.