World without capitalism?

Is capitalism really necessary? Isn't someone owning a piece of property and complete authority over that property, like a dictorship?

I mean do we really need a market, or even a government to be productive. Can a barter economy work, that is, one that ran on pure credit? Proudhon's Bank of the People was a farsighted experiment that would have demonstrated the superiority of a barter economy. The idea was to assemble working people of diverse skills such that anything anyone needed could be provided by someone else. Credits would be defined for the value of work or goods, whether carpentry, milk, health care, tailored goods, or whatever. Defining the values would not be diffficult, after all, we do this with dollars already, except that instead of receiving flat rates they would receive true value. In Proudhon's Bank there would be no money, no interest or profits, and no absentee owners of the same -- it would simply facilitate the flow of goods in a near frictionless manner.

In such a system taxes could not be collected in terms of money, but only in terms of credit dollars towards human labor. Nor could interest be collected, since this also represents profit. The capitalisation of wealth, which holds human labor in suspension and diverts it to the whims of a few, rather than the needs of the many, would not be facilitated. Napoleon, who had considerable capitalized wealth, had Proudhon imprisoned for a trumped-up charge of slander just prior to the opening of the Bank -- and the grand experiment collapsed before it began.

The ancient Spartans were anti-capitalists. They banned all forms of money, precious metals, and gemstones. Overnight, crime disappeared. The quality of life and all things in Sparta became the highest in all of Greece. Instead of focusing on the accumulation of wealth the people developed other ideals for living. Health, athletics, dance, music, social activities, artisanship, and of course, dominating other countries.

In that, I think capitalism is somewhat evil. I would love
to see more involvement among people to make a better world. Life is short, and why not experiment. I hate seeing people who live in shadows afraid from the light.