On the one hand, Bitcoin's strict scarcity makes it a very attractive choice for a store of value, and an ever‐growing number of holders could tolerate the volatility for long periods of time if it is heavily skewed to the upside, as has been the case so far. On the other hand, the persistence of volatility in bitcoin's value will prevent it from playing the role of a unit of account, at least until it has grown to many multiples of its current value and in the percentage of people worldwide who hold and accept it.