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Letter: Going down a black (rabbit) hole (2)

Published 22 October 2025

From Don Taylor Cheadle, Staffordshire, UK

Stuart Clark doesn’t mention Carlo Rovelli’s idea that singularities can exist only in the future. In his book White Holes, he says that because time slows down in a strong gravitational field, a point of infinite density with infinitely strong gravity would take an infinite amount of time to form.

So, from our point of view outside the black hole, what we are seeing is a potential singularity, but the collapse to a single point will take forever, and perhaps the physics won’t break down within the lifetime of the universe. This makes a lot of sense to me – what am I missing?

Issue no. 3566 published 25 October 2025

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