Moppeteer t1_j6kkf0s wrote

Not quite. The thing is, us raising our arms is the evolution of how other animals put themselves belly up. Think of dogs. When a dog KNOWS it cannot win a fight vs another dog (or simply doesn't want to fight, it "shows it's belly" (and by thus, raises their "arms") in a sign of peace, or to be a little more specific, submission.