Do you mean originate and write the paper?

Or do you mean just maybe understand the general essence of the paper's title, and understand major contributions after spending some time reading the paper?

If the former, well... yes. That's probably true for almost all significant research, especially in mathematics.

If the latter, I think you're probably wrong. And that's not to trivialize the work presented in the paper; if anything, the contrary -- the paper's actually quite well-written.