The problem of a planned economy is the economic calculation problem and lack of a mechanism for decision making (i.e. prices). Mises and Hayek laid this out VERY clearly, as early as 1922. The planner cannot possibly know enough to make the right decisions.
That article had an interesting reference to a 2019 book addressing this from tech POV:
"Leigh Phillips and Michal Rozworski are releasing a book in 2019 that argues that multinational corporations like Walmart and Amazon already operate centrally planned economies larger than the Soviet Union, proving that the economic calculation problem is surmountable."
in the limited set of universes where time travel (of at least information) is possible, would you agree that in such a universe at least the optimization step could be centralized? the goal setting step should of course still derive from the public (with or without also utilizing future information, say comparisons by the public)
"Leigh Phillips and Michal Rozworski are releasing a book in 2019 that argues that multinational corporations like Walmart and Amazon already operate centrally planned economies larger than the Soviet Union, proving that the economic calculation problem is surmountable."
https://www.versobooks.com/books/2822-people-s-republic-of-w...
The book page has blurbs from Cory Doctorow and Ken MacLeod among others.