Iteration time trumps everything
The longer I do software engineering (and even things outside of it), the more confidence I have that one of the most important metrics (most important one?) in any sort of creative process is iteration time.
What do I mean by iteration time? The time between having an idea for change and getting real feedback from the real world what are the results of implementing this idea.
The world is an infinitely complex place. It's very very hard to predict the real results of any action. Because of that, to navigate world it's best to make small steps and collect feedback. The faster you can make these steps, the faster you use a new knowledge, to make new, better steps, which compounds very quickly.
It's a principle so powerful, that taken to extreme allows agents that literally have no understanding of anything, beat everyone.