Let’s say there is a light bulb inside the event horizon. It emits a photon. From the light bulb’s perspective, it sees the photon speeding away at the speed of

Let’s say there is a light bulb inside the event horizon. It emits a photon. From the light bulb’s perspective, it sees the photon speeding away at the speed of light. From an outside observer, we never see the photon. It can’t make it out. But — the photon does exist, and it is traveling at the speed of light over a finite (though deeply warped in spacetime) distance. How does the photon not reach us then? Is it not going at the speed of light? The redshift model applies here; the photon is redshifted until it has no energy from our frame.