The fact how if the sun was small and close, in winter in the USA, it would be over south America, so you would have to look way off to the south to see it. However, what if the sun was a bit bigger, let's say 2 continents or so, and just a bit farther away (not globe model size, nor even close) that would make it so it could be directly over south America, but still be slightly over USA, so to the naked eye we couldn't see any difference, but because we were not directly under the sun, we didn't get most the heat, thus winter
