Beautiful way to express how the earth is kept in its orbit by the Sun as it rolls along a 'valley' in the warped spatial fabric. This follows the "path of least resistance" in the distorted region around the sun.
Also, this is another way to suggest how gravitational 'explosion' could me 'immediately' felt if something happened to the sun. Whereas it might take light to reach the Earth from Sun in about 8 minutes, Newton suggested the gravitational impact would be instantaneous!! Something travelling faster than light is still not allowed in Physics unless General Theory of Relativity is invoked.
From Brian Greene's The Elegant Universe
Also, this is another way to suggest how gravitational 'explosion' could me 'immediately' felt if something happened to the sun. Whereas it might take light to reach the Earth from Sun in about 8 minutes, Newton suggested the gravitational impact would be instantaneous!! Something travelling faster than light is still not allowed in Physics unless General Theory of Relativity is invoked.
From Brian Greene's The Elegant Universe
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