> Philosophy likes to make things all seem like perception and mental frame of reference, and sometimes it is with people, but the earth’s trajectory relative t

> Philosophy likes to make things all seem like perception and mental frame of reference, and sometimes it is with people, but the earth’s trajectory relative to the sun doesn’t change if we think about it different or define terms differently. That's exactly the point here - answering the question of which revolves around what boils down to deciding which body is stationary, and that depends entirely on your frame of reference. Viewed from the Earth the sun is moving, and viewed from the sun the Earth is moving, and viewed from somewhere else they both move relative to one another. But none of those viewpoints is any more physically real than the others - they're just choices for where to put the origin of the coordinate system, as it were. That is, if you wanted to predict how the planets will move in the future, you could start from any of those assumptions and still make correct predictions. That's what I mean by saying there's no physical reality to the matter of which frame of reference you choose.