Perhaps people won`t even use money or cryptocurrencies.
That's exactly what I'm doubting. Money is an ancient tool. It is simple and useful, but we perhaps can get a better tool to coordinate the connection of work, needs and (scarce and non-scarce) resources.
I can see two different money-less scenarios:
- money is replaced by an artificially intelligence that continuously monitors resource usage, human work and the evolution of the needs of the individuals and incentives the people with some kind of non-monetary reward if they act for the good of the society. It will be a bit of a "Big brother" society, only that most humans will feel fine because they will have to work much less than now and most if not all needs are covered.
- we don't need money at all because everything is automated and human work isn't needed anymore.
Bitcoin wouldn't play a major role in both, although it could have been used before the establishment of such a system to fund it, or a blockchain-like system is used to monitor resource usage. Bitcoin could also end as some kind of play money, for people that are nostalgic with the 2010s (and maybe 2020s).
(Maybe 2057 is a bit early for these scenarios and I'm talking about 2097 or 2157
)