> I think my point is that you can lose competence in math very very quickly through lack of constant exposure.
This is not that important in my opinion. If you're lacking exposure, it must be because you don't apply math every day, and it won't be a big deal. If you apply math every day? Then you will quickly catch up with whatever field you're using.
If you're in pure math, then none of that matters as well, only proofs do. And lack of exposure will often not harm any of the tricks you learned while constructing/understanding them.
This is not that important in my opinion. If you're lacking exposure, it must be because you don't apply math every day, and it won't be a big deal. If you apply math every day? Then you will quickly catch up with whatever field you're using.
If you're in pure math, then none of that matters as well, only proofs do. And lack of exposure will often not harm any of the tricks you learned while constructing/understanding them.