The seat is pushing me in the car and the earth is pushing my feet when I stand up on it. The frame of reference is the curved 4 dimensions space-time https:/

The seat is pushing me in the car and the earth is pushing my feet when I stand up on it. The frame of reference is the curved 4 dimensions space-time https://en.m.wikipedia.org/wiki/Minkowski_space https://en.m.wikipedia.org/wiki/Minkowski_space