I was wondering how could someone express the idea of "Bias for action", especially in the sense of it being a specific character trait for someone.
Here is a succinct description of what I mean with "Bias for action" from defmacro.org:
Bias for action – in daily life many important decisions are easily reversible. It's not enough to have information – it's crucial to move quickly and recover if you were wrong, than to deliberately indefinitely.
Idiom: One test is worth a thousand expert opinions.
Idiom: The best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.
Note: The best people do this naturally, without brooding, and with a light touch.
My Calligraphy teacher (who is Japanese) suggested "即決即断" (which is close enough, and has also the nice benefit of being expressed using Kanji alone, which is a plus for me) but I wonder if there is any alternative that may be even more appropriate.