And, frankly, even for the less-critical stuff that was only running on a single node, I still dealt with fewer availability problems back in the day than I do now that everything's gone distributed. I think that a thing that's been forgotten over the years is that a lot of this stuff that distributed systems do to be reliable was more about digging oneself out of the hole that was created by running on lots of cheap hardware instead of using a single server with redundancy built-in. I acknowledge that, past a certain scale, that's the only option that makes sense. But if you're not operating at that scale then there's a good chance it's all just verschlimmbessern.