Maybe my master had set the bar very high and I'm using his skills and experience as a measure of mastery. But when it comes to my work, I think I'm doing all 3 things you listed.

gnilma

It’s hard to define. I think many aspects that you covered are important:

I also agree that having more to learn doesn’t disqualify you from being a master. There’s always more to learn

mostly_harmless

On the Subject of Mastery and Achieving Mastery

It’s hard to define. I think many aspects that you covered are important:

1. Do peers seek your advice, either both in planning or repairing?
2. Do you foresee issues before they happen?
3. Do you understand why you do things, not just that you have to do them?

I also agree that having more to learn doesn’t disqualify you from being a master. There’s always more to learn 