@Radical_EgoCom The problem with "solidarity, cooperation, and mutual aid" is that it operates by the *exactly* same rules and for *exactly* the same motivations as baseline communism, only at the level of communes instead of households. Whenever a commune is asked for something by another commune, it would have a choice: Fulfill the ask, or invest in their own internal capital, thereby becoming happier and more productive.
@Radical_EgoCom Most communes would usually fulfill a goodly proportion of asks, because they don't want to get de-federated, lose their trade partners, lose their insurance. And there would probably be a weak form of progressive taxation on these exchanges, since rich communes would probably be expected to pay more. But that would come at the cost of the richer communes accumulating political capital. And the "taxation" would probably still not be enough to prevent the centralization of capital