why cant a photon escape a black hole? i think it is because the photon is red shifted away to nothing, if this is true, it would be possible to create a photon that would be energetic enough that a black hole would not have enough time to red shift it away to nothing, unless there is some theoretical limit on the energy a photon can have? Since a photon cannot be slowed, an force doing this will just red shift it, it should be theoretically possible. this brings me to another question, how can a photon be red shifted to nothing? as it is red shifted there will be less energy in the photon, so gravity would act on it less, it would be an exponential curve and would never reach 0. all this must b based on the assumption that we are launching this photon perfectly straight away from the black hole from within the event horizon so it cannot be bent, merely red shifted or decelerated.