Well, if you knew that people were trying to send you positive vibes, or thinking positive thoughts. then that could well affect your thinking, which could affect the outcome of something you were trying to achieve. But I don't think that is what you mean. I think you talk about whether or not these vibes would exist, independant of you knowing about them. In which case I am skeptical. Do I read you right?

It's an interesting question though. Transcendental Mediation has some interesting views on this. Whereby people trained in meditation can focus their thoughts en masse, and influence political and economic events.