Quote:
Originally Posted by Angst
Considering that light can enter a black hole but not exit, isn't the terminal speed of light that enters a black hole zero? Is this not caused by the gravitational force exerted the black hole?
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No. A photon that enters the event horizon of a black hole can never escape from it, because spacetime is not merely "curved" inside a black hole, but "disconnected" from the outside universe. There can be no transmission of information across the event horizon.