I don't think free is impossible. Might take some fudging of the definition... But like with the possibility of Fusion energy... The idea here is that electricity would become so cheap, it would be more costly to bill customers.

I can see a similar scenario happening with food, and the state power would have to take over production because if the profit goes away or becomes so minuscule that companies are dropping out of the agriculture business, it'll need to be bolstered somehow.

Either, A) State ran, free for everyone within reason. B) More farming subsidies. C) ??

we always get the "BuT tHaTs NoT fReE", so here: No but its free for the consumer to consume.

Then, not to mention, this will be happening to nearly every industry across the world.