>>390820>>390902 (me)
the same goes for what we could call "building the plan". it is not possible to decide centrally, by humans, who should produce what. this is what we have computers for. and these computer will solve the one
single set of equations. if you don't coordinate all workplaces within the one set of equations then exchange must be used. and so you are back to market socialism and the restoration of capitalism.
what humans can do, at all levels, is feed the system of equations, put in constraints and so on. glushkov tried to do this in the USSR, with some success, before gorby and especially jeltsin came along.