But not the other way around!

I don't understand what you appear to view as obvious. Can you explain?

All you need is a way to resolve conflicts and you can serialize any distributed set of actions to a log.

	▲	immibis 3 days ago \| parent [-]
		All you need is a time machine and then you can prevent the holocaust. All you need is a philosopher's stone and then immortality is within your grasp. All you need is an infinite source of energy and then the finiteness of the universe need not concern you. All you need is a magic genie granting infinite wishes and you can end world hunger. If all you need to solve a problem is something impossible, then you haven't solved it.