[beachy]

As far as I know the only practical downside with UUIDs in the modern age - unless you like using keys for ordering by creation time, or you have such enormous volumes that storage is a consideration - is that they are cumbersome for humans to read and compare, e.g scanning log files.

And in any case the German tank problem means that you often can't use incrementing numbers as surrogate keys if they are ever exposed to the public e.g in urls.

[mrkeen]

> they are cumbersome for humans to read and compare, e.g scanning log files.

I think the positive still outweighs the negative here: you can search your whole company's logs for a UUID and you won't get false positives like you would with serial integers.