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Comment Double-rubber Hypothesis (Score 1) 117

Any chance the topology of space-time can vary independently of gravity?

Despite its flaws, let's use the rubber sheet analogy. Except in this case, suppose there are two rubber sheets: one atop another. Say ordinary matter (planets, stars, etc.) indent the top sheet as expected, but only black holes can over-extend the first sheet and influence the shape of the second underlying sheet.

Now suppose this second sheet deforms over greater distances than the first, which in turn influences the shape of the top sheet overlaying it.

Thoughts?

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