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The often quoted speed of light is for light in a vacuum. From what I understand light can actually travel faster than "the speed of light" in a transparent solid. As for the black hole bit. The light speed doesn't change, its wavelength does. Almost like a doppler shift. And yes right at the very point of the event horizon light does (apparently stand still) Mind you that "point" is in fact a 2 dimensional field curvature. therefore it has no measureable thickness, so you wouldn't be ale to view it anyway.
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