Âé¶¹´«Ã½

Letter: Going down a black (rabbit) hole (4)

Published 22 October 2025

From Philip Le Riche Harpenden, Hertfordshire, UK

I always understood that time grinds to a halt at a black hole’s event horizon. If so, it is surely nonsensical to ask what is inside a black hole, and by implication, whether at this moment it contains a singularity.

So if I were to fly my spaceship across the event horizon of a black hole, I’d see the entire future of the universe play out in my wing mirrors before (if ever) hitting a singularity!

Issue no. 3566 published 25 October 2025

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