Today, someone asked me why "the warped space-time warps itself" (he read it in Kip Thorne's: The Science of Interstellar). I guess this is related to the gravitational self-interaction. But I don't really understand the gravitational self-interaction. Why the curvature in general relativity influences itself?(adsbygoogle = window.adsbygoogle || []).push({});

What term in the Lagrangian will cause this effect? Is there something like an energy tensor of the gravitation field (I read something in the textbook of Landau and Lifschitz).

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# Gravitational self-interaction

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