The medium for exchange grows in value as a side effect of productivity increases and increased faith in its continued stability. Government fiat money counter

The medium for exchange grows in value as a side effect of productivity increases and increased faith in its continued stability. Government fiat money counteracts this mechanism of value growth through inflation. Some argue that this leads to a net benefit to the economy, but if Bitcoin is the currency of the world in the future, then it will gain value as the whole production of mankind grows. And unlike gold, it cannot be synthesized with very large amounts of energy.