If you can get an intuition for what the following two quotes mean, you'll have understood most of the conceptual content of general relativity: "Space tells matter how to move; matter tells space how to curve." "Free fall is the natural state of motion."
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Replying to @litgenstein
I’m not sure how “natural” free fall is though .. wouldn’t the natural state be moving at a constant velocity?
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Replying to @InertialObservr
Yeah I guess the ‘test particle following its world line uninterrupted’ is the only thing you need
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Replying to @litgenstein
Right .. I would say /that/ is the most “natural” state of motion .. following a linear world line
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Replying to @LambdaQG @litgenstein
Right .. see my replies to @bencbartlett
9:18 PM - 23 Sep 2019
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