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Originally Posted by Karupted Charles
Gravity is the affect of mass in motion. Or multiple bodies of mass pulling on each other based on motion is it not? ( I may be totally off on that). That would lead me to think that there would have to be some large body of mass outside the universe to pull the universe towards it if gravity was the cause. My guess is it is more likely inertia still propelling from the initial bang of creation whatever the cause.
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Well, Einstein said that time & space are not 2 separate things, but one thing: Time Space. Gravity supposedly comes from objects (mass) warping time/space. Like if you take a bed sheet, have a person holding each corner, and you swirl a baseball around in it. There's no magical mysterious "force" (gravity), it's simply the mass of the object distorting the fabric of time / space. (the sheet). Since the fabric is distorted by the baseball, other objects are susceptible to falling into it's "gravity". I'm not convinced that gravity is really a "force" so much as it is an optical illusion based on our perspective. If we could see it from a much larger perspective, it probably wouldn't be so mysterious any more. We'd be like, "Oh, well that makes sense now."