Sure, why not? Then I could study all of mathematics, physics, computer science, or whatnot at my leisure! Right now, I can only experience the smallest of glimpses into incredibly interesting fields.
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.
And if you get bored after 500 years, you can always opt out. I'd like to have the choice to see if I do like it.