Based on this all meth heads may actually be geniuses:

1. They can talk about anything and everything simultaneously. (Stupid people often can't even understand them.)
2. They stay up all night.
3. They use fewer electronics. (In favor of dissembling them to learn more)
4. Drugs.... big check, check, check, wait where are my drugs, oh... ok, check.
5. Skeptics... check... often hard to convince and paranoid.
6. Curious... check... see #3.
7. They're questions provoke lots of thoughts... what's this guy on, what did this guy just say, is he talking to me or is he talking to himself?

Sounds like the best way to become more intelligent would be to go find some meth heads to hang out with while recreationally doing lots of meth.