How do black holes “consume” light?
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Photons aren’t sucked into them. Rather the space they travel through is curved by the black hole’s extreme mass to such extent that what seems from the perspective of the photon to be “going forward” is from our perspective “veering off course.”
Technically everything bends space like that — even you — but just like it takes the mass of this entire planet to keep you moving towards it, so it takes the mass of a black hole to keep a photon moving toward it.
And when photons don’t go into your eye, you don’t see them. (:
The car isn’t steering away from the road; the road itself is bent towards the mountain such that not a single car whose GPS navigates it over that road will ever reach your driveway.
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