> The OPs question was whether Capitalism as we understand it now, is suited for the future when we expect most kinds of labour to be done by machines.
Capitalism "as we understand it now" is not pure capitalism, it's capitalism accompanied by a welfare system. Why is that not scalable to a future where most labour is not done by machines; what's qualitatively different between 70% of the population working with 30% on welfare, and 10% of the population working with 90% on welfare?
>Which means automation will give rise to an increasing number of people who cannot undertake non-automatable knowledge-work, and thus become doomed to be unemployed, and leads to a self-reinforcing cycle out of which they cannot escape. This is a problem that the civilization has to confront, and our current way of thinking about economics will not work there.
How is it a problem? If they're less productive than robots in every way, why not just put them on welfare? Current economics handles this perfectly.
>If we consider that each of us is beholden to the collective past of entire humanity, the idea of ownership and 'fruits of labour' becomes just a social construct. This construct nevertheless is required today and for the foreseeable future as the only practical way to divide resources. However it is a complicated and probably intractable idea, and is not at all axiomatic as you seem to make it out to be.
'Fruits of labour' is axiomatic in the sense that rejecting it necessarily entails violence. Eg, if Joe picks an apple, but is not allowed to keep the fruits of his labour, this necessarily entails violence or the threat thereof to take the apple away from Joe. If Aaron sings a song and Camelia offers him a pumpkin in exchange for this, but they're not allowed to trade freely, this necessarily implies some violence or threat thereof against them to prevent them from making the exchange. If Martha builds a car for Fred and Fred offers Martha a house in exchange, but then it's decided Fred shouldn't be allowed to keep the car, violence or the threat thereof is necessarily required to take the car from Fred. Unless Fred wanted to give it away freely, for instance charity, but he's perfectly capable of doing this anyway under a 'fruits of one's labour' system.