[Bartweiss]

A related interpretation: your debugging tools need to be at least as good as your programming tools. Ideally, better.

Debugging a K8 cluster with print statements is hopeless, but if the cleverest code you can write in a dumb editor is going through a good test suite and profiler, you might be fine. How many as-clever-as-possible optimization tricks have been made viable by Valgrind?