The Bitcoin white paper describes it as a "purely peer-to-peer version of electronic cash."
However, many argue now that it is an asset rather than a currency, largely due to the volatility of its price. Cryptocurrency in general, has struggled to find a genuine use case outside of speculative investment. NFTs can be seen as signifiers of status or luxury items, but this is far from settling the question of their inherent value. Many also pin their hopes to crypto gaming, yet the games themselves have yet to be developed, and it is not clear how the presence of NFTs will enhance the actual gameplay - it remains for crypto gaming to develop games that anyone actually wants to play for their quality as games. Another development is decentralized finance, which seems to simply be a rotating of funds between assets and functions essentially as a ponzi scheme. It raises the question, what is the genuine use case for cryptocurrencies, and will their main appeal always be as a vehicle for risky, yet profitable speculative investments?