Imagine that economy that we know it today is not needed anymore, personal profit stimuli is just a page of a history and social and political life is just different from it's today version.
How then needs of people are solved, and on what would you spend your time and energy in that case? Did you see the crypto there, and if yes in what role?)
P.S. I know the Ideas of Karl Marks about post-komunism and not a fan of it)
The people`s needs are unlimited,while the resources on our planet are limited.That`s why there`s no way the needs of the people to be solved completely.Limited resources mean that everything has a cost,which means that trading is a crusial part of the human civilization.Anyway,i think that the future society will be dominated by robots and all the people will have lots of free time.This will happend in the next century.