Price volatility is seen by some famous economists as too risky for the future of Bitcoin. In his opinion, the high volatility of Bitcoin's value means that it does not function well as a storage of value, and that is the reason why Bitcoin has not become a real unit of account yet. High volatility also makes it risky to sign long-term contracts on Bitcoin. At the same time, Bitcoin's inelastic supply, in the future, maximum of nearly 21 million Bitcoins- and a relatively small market cap make transfers of huge amounts unreliable.