This is so ridiculously interesting... I've never thought that it was weird, I just always knew that if I closed my eyes, I would pretty much not be able to walk in a straight line. BUT WHY EVER NOT?! Apparently they're doing studies on it right now, and although interesting, it seems like a pretty frivolous thing to do a study on. But I'm kind of intrigued to know, so no complaints.
Maybe this is a physical manifestation that is symbolic of our tendency to walk in endless circles when it comes to making life-defining decisions... what? That's not scientific? What? I just made that up? WHATEVS