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Comment by bravesoul2 | Hacker News Reader

I don't understand the more space thing then. Is this more space due to spacetime curvature or something else.

E.g. if we have earth and moon:

    O   o

Why is there more space from the moon towards earth than away?

Spacetime curvature.

Like if you dropped the earth on a giant sheet, it would stretch the sheet more than what the moon would have.

If you rely on spacetime curvature for your explaination then why not just use general relativity to explain the gravity?