fuck if i know, i grew up in a capitalist world and live in it i can no more imagine how a communist society would work than a slave in ancient rome could imagine our wold. All i know is that its a good ideal and that it is good to move in that direction, maybe we cant have "from each according to their abilities and to each according to their needs" right now but we can atleast have "from each according to their abilities and to each according to their labor" and a basic floor to ensure no one lives in inhuman conditions and then maybe in a few generation people have some ideas on how to achieve the ideal or atleast get closer or maybe they discover an even better ideal idk i cant know, what I know is that capitalism is fucking garbage.