That's a very simplistic representation I think, but yes. If the desired outcomes are sustainability, efficiency and a high standard of living for all people, then common efforts to achieve those ends, along with the application of our technical capability and reliance on the scientific method for rational consensus, are what is generally being proposed.
No intention of oversimplifying; I just understand things better if I can get them down to layman's terms
Don't laugh, but I've experienced something similar to this while playing the game Minecraft with friends; in it, you have personal property that you achieve through working the land, private property in a sense where it's generally agreed to be rude to intrude on another person's home uninvited, and you work together with your pals to "improve your living conditions" so to speak; if your friend was clear across the ocean and you wanted to see them more often, you'd just go out and make a bridge, or if you wanted to automate farming, you'd figure out a way to do it at the push of a button, so you could have more free time to do other things.
Whenever you needed something, such as cobblestone, you'd ask your pals if they had any, and usually they would, so you'd go and they'd give it to you and that was that; you continued to build things that would improve your experience there. However, I've also seen forms of the market as well; sometimes a pal will ask for help that won't assist anyone but them, and they offer to pay in diamonds or gold for your time (that whole "What's in it for me?" thing); other times, they'll need something rare that you have and plan to use, and it would be faster to part with one's own rare items to trade for the desired item than to go out and try to find another one. I can see how this can be resolved in reality: the first one can gradually be fixed with machine labor, the 2nd scenario can be solved with improvements in creating synthetic materials to remove the scarcity of any given thing; however, until that time, it seems the only alternative would be to use the market.
Anyhow: why is the RBE often set at-ends with the market system? It seems they can both work fine in harmony; is there anything about the RBE which technically makes it incompatible with the market, or is this personal preference to avoid it? Would the Zeitgeist advocate ostracize themselves from a person who participates in trade?