> I can't wrap my head around the way this solves the global mutable state problem. That's because you can't get rid of global mutable state. The only thing

> I can't wrap my head around the way this solves the global mutable state problem. That's because you can't get rid of global mutable state. The only thing you can do is try to spread it around to add write concurrency, but that only works for some transactional/concurrency models and schemas. It looks from the other reply like the answer is that the data is sharded to effectively increase write concurrency, but it's still 1 writer per shared.