--IMVHO(and an unscientific hunch/observation), the way the bodies were laid out follows the brains subconscious natural selection(but might just be PURE coincidence). Meaning: Let's say you are sitting at an empty coffee table--If i hand you a cup or pencil(or whatever), and have you place it directly in front of you onto the table(then you do it), then hand you another of the same item and ask you to place it on the table, you will MOST likely place it to the side of your dominant hand(the one you would perform MOST of your primary single-handed activities with especially your writing hand(ambidextrous throws a wrench in it, or weird people like me because i write lefty but almost everything else is right handed, so a form of ambi). Giving you a third, would MOST likely cause your brain to make you place it to the opposite side of the first item that you placed the second item to "balance" out the three items(one the right, and one to the left) of the first item. And then the fourth item would go back to the side of the first item that you placed the second item, right next to it.. 4,2,1,3 for a left-hander(3,1,2,4 righty)... I say MOST on these scenarios because that's the most occurring outcome, but not ALWAYS the way it will go down. A few years back when the layout of the bodies was revealed. i tried this test with several of my friends, work colleagues, and teammates, and asked them not to think just react when doing it. This eliminates the person trying to come up with a variation they normally wouldn't do just because they might think it's a "trick" question, or that there is a true "right" or "wrong" answer i was looking to get(normal reaction for people to think they are being tricked/fooled/setup)..This resulted in every left but one going 4,2,1,3(the one differing did it as 4,3,2,1)...A few of the righties had varying outcomes, and the ambis primary went the right handed layout outcome...Purely unscientific but interesting nonetheless