Tricky when the super intelligent robots that'll make stuff don't exist yet.
"socialising the means of production" doesn't mean "everyone gets free stuff". It simply means that the people who actually work the means of production decide how it's directed. It's simply the antithesis to "privatisation" (which oddly more people seem to understand correctly).
Yeah but in this case, who are what are you nationalising?
Why not everything over a certain size? It would be impossible to manage every 1 man business or job, but every 100 or 500 or 1000+ business already has significant management.