If you are someone who is on the cusp of a better grade at university then any curiosity time is better invested in restudying the past exam papers. I think PhD

If you are someone who is on the cusp of a better grade at university then any curiosity time is better invested in restudying the past exam papers. I think PhD has more of a curiosity culture at least in the first year but I never did one. Also hard subjects at uni - there is only so much deep thinking you can do per day