The ability to learn whatever I want at a rate many many times faster than anyone else and to immediately internalize it and remember it forever. Basically, I still have to attend classes or training or whatever as to not be suspicious, but I learn everything with no problem and it's an easy process. To the onlooker, I just appear to be extremely smart and talented.

I like learning stuff, and there's a ton of stuff I want to do, but wishing for "infinite knowledge" disturbs me, because I don't want to know everything, just the stuff I'm interested in. It would allow me to pursue any degree with ease, to learn to be a pilot.....to learn anything I wanted in a short time.