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> You might as well say that gravity has nothing to do with up and down. Gravity doesn’t have anything to do with up and down. It deals with mass and center po

• quadrangle 5y ago
  > It only appears as up and down to you on earth Up and down aren't anything but appearances. And since we evolved on Earth, with gravity, our experience of "up" and "down" are specifically caused by indicators that tell us which way the center of our planet's mass is. Sure, it's all perception via our sensory systems, and they can get distorted, so we could sense "up" as toward the earth if something in our sensory system gets messed up (pun in that metaphor hah).
  • RC_ITR 5y ago
    Yeah so our sense of up and down has everything to do with gravity but not vice versa. Again, lessons to be learned…