Ok, so you are assuming that you would be immortal and free to pursue intellectual endeavors forever. This implies that all of your problems would be solved.

You would be forever chasing the dopamine hit of understanding more of the fields that interest you. Or you could just shoot heroin. Without mortality or problems to confront, all meaning would be lost. Math, heroin, sex, all the same. Consider the dissolution of meaning, and the fact that infinity is a very very long time.