Option 1: live forever, understand and know everything...but only be able to observe others. (What you may know and observe could possibly drive you insane and you cannot interact with other living creatures accept others like yourself.)
Option 2. Live 3 times the average human lifespan, be stupid as hell and unable to learn. But have the ability to drastically affect the course of history by your actions.
(Your like the king of the world but a dumbass)
-
Option 2 is pretty much hitler on a evil way