Absolutely None.
Anyone who knows Hegel; travellers, adventurers, and thinkers of all sorts; anyone who can find Guam on a map; anyone who does not need an electric tuner; anyone who remembers what it's like to be five; the wise, the old, the young, the modest, the lonely, the downtrodden, the stargazer...Or simply, anyone who has gotten over the world being all about them.
Almost anything you can play on a guitar.
Martial arts flicks, anything that is witty and has a point.
Shameless follower of Cartoon Network and the Marvel Saturday morning lineup
Tell Newt to Shut Up, Still the Golden Door, Underground, The Beloved of God, How Congress Evolves, A Wrinkle in Time, Shakespeare, So You Wanna Be a Rockstar, Goode's World Atlas, X-Men Comics
The men and women of history whose shoulders we stand on to build a better tomorrow.