Engineering should be exactly as rigorous as the task requires. Anything more is wasteful.

Judging by all the trivial errors made in pre-AI code, many of us are far from rigorous a lot of the time.

It’s like that story about the programmer who wants to send the car down the slope one more time to see if it does the same thing again (or whatever it was). The ephemerality makes iteration possible and appropriate, but also makes rigour less important.