Advice
Anyways, are Caltech students actually given handouts on say, "the dangers of computer game addiction", rather than "the dangers of drug addiction?" I find that statement rather amusing, incidentally.
The point notwithstanding, is that there are hidden factors like computer games that explain some of the failure rates. For some reason, so many Caltech students like to play computer games. Many of them think that they can control their urges to play such games, only that they discover that people around them are playing games, or they discover a new game, or they discover BitTorrent, and then boom, predictions based on limited information are shattered.