@faassen @jenniferplusplus @inthehands indeed -- and I think it's important to consider a dimension where the mastery goal stuff isn't always about "I must become the best" but rather intrinsic motivation and caring about the effort of it, not just the output of it, perhaps that is my personal buddhist philosophy speaking here but I think the research aligns as well. I personally might not have chosen to call this "mastery" if I had named it