For me its plain and simple for me, its a load of stuff for many MANY reasons. One simply being is that he was talking about how travelling through worlds you could end up in the air because of the difference in history etc, to me that a load of stuff because Earth rotates around the sun, people seem to forget this when they're talking about time/dimension travel, if you go back 6 months earth would be on the other side of the sun and you'd end up in space. DURP