UUIDs are so funny today because almost all of their deployments is "we take a string of mostly-random bits but give it structure for no apparent reason"
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it's true that you could populate some of those bits with predictable sequences to avoid clashing (a la snowflake) but guess what: you can do this to a hex string or a number (as does snowflake). i think the only reason UUIDs are as popular as they are today is Microsoft?
@whitequark i like UUIDs because someone else has already solved the problem of "how to make thing unique" for me and i don't have to think about it
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@ramsey oh, I didn't know this!
@whitequark @ramsey I've only ever seen version 4 (unstructured random) in production that i can recall
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