Communism was not as such an idealogoy for a present day economic system.
It is an anticipated stage in human developement that emerges when productive forces are sufficent for assured abundance of wealth. Its birth is signalled by the dissolution of the state.
It is stateless, classess and moneyless. It is closest to absolute freedom. Even economically.
"In communist society, where nobody has one exclusive sphere of activity but each can become accomplished in any branch he wishes, society regulates the general production and thus makes it possible for me to do one thing today and another tomorrow, to hunt in the morning, fish in the afternoon, rear cattle in the evening, criticise after dinner, just as I have a mind, without ever becoming hunter, fisherman, herdsman or critic."
~ Marx
Hypothetically: society's energy in Communism might be powered by advanced and extensive developement of renewable energy technology. The sun and ocean's power would not be owned and sold to you by a market, and it would not be distributed to you by the state on the condition that you submit to its authority.
It would be produced and distributed by wider society according to need. Greed, theft, jealousy and corruption are unnecessary and fatuous in a society absolved of scarcity.
Rottweiler said:
No one that I am aware of can show a real life example of successful Communism (*possibly* on the village level, but I doubt even there.)
Despite that, many people continue to claim that somehow, somewhere, it's a wonderful system.
Very well, for those of you who argue that Communism is superior: show me an example of a Communist system that lasted 5 years or more. Just one. Don't make excuses for it, don't say 'well so and so ruined it', show me an example, in real life, of an actual Communist country, village, city, state, etc. that lasted 5+ years.
Now, let's take the other side of the coin. Look at countries who *claimed* that Communism was the best government ever (and, usually, murdered a great many of their own people in order to force everyone to be Communist) and tell me how it worked.
What I find funny is that this entire conversation has not once shown Communism as a real life example of success, but is perfectly willing to make any excuse to claim that it 'should' work.
An existing example of society that holds the most things in common with Communism is the internet society.
Most users hold equal status (though levels of subjective credibility can vary). Not because any central authority decrees it to be so; they just do. There is no distinction in status between American users and others, or males users and female users, employed or unemployed. Those distinctions only exist subjectively in the minds of individuals.
It is governed by consent of the various communities. You can move to preferable rules of another community (or create your own) if you wish.
Google is one of many free and valuable services available to everyone.
There is (still mostly) common access to its means of production.
You can make videos, articles, mods and blogs, and show them on public platforms like youtube if you desire. You don't need to prove credentials to obtain and be tied to an employment contract to do so. Other youtube videos and users are not your competition unless you subjectively perceive them to be.
You can take other user's digital media and creations and transform them into memes or improved work without being chased on grounds of copyright theft and endangering their livelihood. (with obvious exceptions, but those are for reasons connected to the capitalist outside world)
There is complete freedom to pursue passions and interests at will. You can consume as much from the internet as you wish (or can). You can produce for it as your passion desires without economic stimulation or obligation. Works can be distributed infinitely and immediately to all who know of them and desire them without a trade obligation.
You don't have to work like a drone to acquire the capital to buy the freedom to make and do what you wish (at a pace and vigour determined by the market), or to keep up with Moviebob's latest vid.
Sites and free services would be ad-less, internet security and other digital software would all be free and torrent sharing of popular works would be legal and a good thing... if people's livelihoods didn't depend on the Capitalist outside world.
I concede that the internet requires support from Capitalism in the outside world. But inside the digital world; there is no such need for a Capitalist system to manage it.
Right now Capitalism (markets and the state) is looking for ways for its influence to colonise the internet. Mostly to protect livelihoods, and to secure livelihoods for internet producers. What a capitalist internet economy will be like in the future is is difficult to predict; but take the early years of the internet as a clue that communist utopia could potentially be possible, realistic and preferable if the conditions could ever be met.
Consider also the paradox of Capitalism.
Technological advancements herald unemployment rather than easier working life. Productive forces sufficient for the population to bask in prosperity would herald the urgency of population growth.
It would fall apart if you did the opposite.
Though it is advocated as a system based on nothing more than the notion of free, voluntary and universally beneficial trade; the system demands a proportion of unemployment and scarcity (artificial if need be). No matter what you try to do, the misery has to go somewhere.