Ask Ethan: Why is there no antigravity? - Big Think

In General Relativity, the matter and energy curve spacetime, which we experience as gravity. Why can't there be an "antigravity" force?
In general relativity, matter and energy curve spacetime, which we experience as gravity. Why can't there be an antigravity force?

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Ask Ethan: Is our Universe truly matter-dominated? - Big Think

Ask Ethan: Can We Really Get A Universe From Nothing? - Big Think

Ask Ethan: Is it possible that gravity isn't quantum? - Big Think

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Ask Ethan: Why is there no antigravity? - Big Think

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Secrets of Antigravity Propulsion, Book by Paul A. LaViolette, Official Publisher Page