>>7083655People collectively create large pressures to improve their standard of life. Every time a standard is set it is almost unthinkable that this standard could be reduced (think social security and human rights). Capitalism is unsustainable in providing this standard of living as capitalism fundamentally concentrates wealth and wealth tends to be a zero sum game on a planet with finite resources ergo it only increases wealthiness through taking away from others. Socialism however, is a stabler means of increasing wealth, it has a distributed cost distributed rewards proportional to investment into socialism (Think shares of a company). This fundamentally makes up for the problems of privatization (capitalism) and stabilizes it allowing a more consistent and secure standard of living for people (e.g. socialized medicine). As time progress eventually all forms of ownership will move towards more efficient means as either capitalist means will be to wasteful to be feasible or people will just make the choice rationally. Now socialism under this stage where there is collective ownership is efficient but it pales at the benefits and efficiencies of having a more cooperative environment, this is well known (think corporate consolidation). Eventually socialist entities will unite and become more inclusive as they opt into the efficiencies of synergy and co-operation over wasteful competition. Once the eventual and inevitable most efficient state of society is achieved where everyone has free access to whatever they need and will be given the means to produce maximally of what ever they can/want then it becomes communism. There is not state, no money, no social classes. As people have rationally and practically moved away from them for more synergistic organizations of society that allow for more stable ownership that will maximize their standards of living (collective ones).