Can you give an example of the level where things suddenly become more difficult?
I hit a wall in my string theory course, after having to apply a lot more effort than expected in a QFT course the year before. Didn’t have that issue with GR at all. Well, maybe with some finer points involving algebraic topology, but nothing insurmountable.
I hit a wall in my string theory course, after having to apply a lot more effort than expected in a QFT course the year before. Didn’t have that issue with GR at all. Well, maybe with some finer points involving algebraic topology, but nothing insurmountable.