Interesting observations.
fo light (ie photons) to be gravitationally bound by a black hole, or anything for that matter, doesn't it require that photons have some sort of "mass" even if said "mass" is in a different dimension that is not measuarable currently?
How is it that gamma rays can escape from a black hole but not photons?
I've always thought of gravity as the effect of one mass on another...perhaps this is an overly simplistic view of gravity?
I do think that the key to a single unified theory will rest on how gravity is explained.
Unfortunately, my Evil mind is too small to fully grasp all that is.