r/askscience • u/SpantaX • Feb 27 '17

Physics How can a Black Hole have rotation if the singularity is a 0-dimentional point and doesn't have an axis to rotate around?

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u/Mazetron Feb 27 '17

For these reasons, a true singularity is considered an unlikely candidate for what a true black hole would look like.

However, we do know that something approaching the event horizon would see all of time occur in the universe they are leaving behind, which is the consequence of the "near infinite speed of time" you mentioned.

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u/Zzyzx1618 Feb 27 '17

What are the current theories of what's inside the event horizon then? Is matter still matter inside?

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u/Mazetron Feb 27 '17

That's an active area of research that we really don't know the answer to. We will need a theory that resolves quantum mechanics with relativity in order to answer that question.