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## Main Question or Discussion Point

I'm a little confused about what an observer would see while watching something fall into a black hole.

From what I've read, an observer would see the object appear to move slower as it approaches the event horizon, due to time dilation, and it woud take an infinite amount of time to reach the horizon (as seen from observer's frame).

Why doesn't the observer see the light from the object shift in spectrum as it loses energy to the black hole's gravity well, until the object gets to the event horizon? And once the object passes the horizon, wouldn't the object disappear because the light loses all it's energy before it escapes the event horizon?

From what I've read, an observer would see the object appear to move slower as it approaches the event horizon, due to time dilation, and it woud take an infinite amount of time to reach the horizon (as seen from observer's frame).

Why doesn't the observer see the light from the object shift in spectrum as it loses energy to the black hole's gravity well, until the object gets to the event horizon? And once the object passes the horizon, wouldn't the object disappear because the light loses all it's energy before it escapes the event horizon?