> With a lot of things it takes trial and error to make progress

Way too often that is used as an excuse for various forms of laziness; to not think about the things you can already know. And that lack of thinking repeats in an endless cycle when, after your trial and error, you don't use what you learned because "let's look forward not backward", "let's fail fast and often" and similar platitudes.

Catchy slogans and heartfelt desires are great but you gotta put the brains in it too.

Without commenting about the frequency of negligence myself, I suspect at least that you and GP are in agreement.

I doubt GP is suggesting ‘go ahead and be negligent to feedback and guardrails that let you course correct early.’

Plugging the Cynefin framework as a useful technique for practitioners here. It doesn’t have to be hard to choose whether or not rigorous planning is appropriate for the task at hand, versus probe-test-backtrack with tight iteration loops.