wow.... I'm sorry, but that's the most retarded thing I've ever heard and I've tolerated quite a few ridiculous claims. What you said isn't close to remotely true, even from a scientific point of view. If anything video games trigger your brain to turn into mush because it's a MINDLESS TASK. Even a retard, literally, can memorize the controls and master a video game, that's how easy it is. I hate to break the facts to you, but video games do not stimulate brain activity. Chess does stimulate brain activity. Period. End of story. Read a book, flirt with a pretty girl, and exercise.
No, his quote is 100% true. Video games didn't help your friend graduate, his natural intelligence level did, NOT video games.