It's hard (not impossible, but hard) to feel superior to the person you're talking to while you're bowed over. That's why bowing is universally a sign of submission.
Re:Are Smartphones Emasculating After All?
by leephillips on Thursday June 27, 2013 @04:48PM
(#5954608)
I think "position" was meant more literally.
I'm not saying definitively that it's pseudo-science, but it does quack a lot like it.