I'm going to test the efficacy of "prayer"... online communication with other minds. I would like at least 30 karma for this comment. If I get this much karma, it will verify the efficacy of this kind of communication. If I get less than that, I guess it will show that this kind of "prayer" isn't efficacious.

Of course, it could just show that people don't always do what you want them to do, especially when you explicitly admit that you are testing them.