> If you're using UUIDs, there's probably a reason. Not really; think of how many architectural decisions are made purely based on imaginary scaling problems,

> If you're using UUIDs, there's probably a reason. Not really; think of how many architectural decisions are made purely based on imaginary scaling problems, or what the latest blog said. I would wager that if you polled 100 backend devs, very few of them could correctly articulate the pros and cons of a randomized primary key.