Basically, cash is a tool of state and/or elites to make your work efforts alienable to the benefits of those who have nothing to do with your work efforts and manufacturers of things you want exchange your work efforts to.

I assume that current level of computer tech and connectivity is more than enough to create versatile and independent barter systems that will completely eliminate any need of any intermediate value containers or means of exchange like money in whole. It is so called "closing invention", that will make all current financial system void, obsolete and useless. That is why it will be never allowed while current elite have any power. And, meanwhile, that is why all enormous processing power and connectivity humanity have is drained into the sink of all that bloatware, games, entertainment, stock gampbling, crypto, surveillance and so on.