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2 votes

How can Kerr black holes have a 'speed limit' to how fast they can spin?

As an addendum to @Anders Sandberg's excellent answer: The maximum limit on the spin is a consequence of two (not fully proven) conjectures that each imply the existence of this limit individually. ...
TimRias's user avatar
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6 votes

How can Kerr black holes have a 'speed limit' to how fast they can spin?

Yes, general relativity does not contain anything preventing spacetime from expanding or moving superluminally (e.g. "warp drive spacetimes"): normally other constraints (e.g. the lack of ...
Anders Sandberg's user avatar
1 vote

How can Kerr black holes have a 'speed limit' to how fast they can spin?

Spin too fast and you have a "naked" singularity Basically, yeah, that's exactly what's limiting the rotational speed of a black hole. Rotating black holes, also known as Kerr black holes, ...
Furious Arcturus's user avatar

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