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I don't know about you, but I have trouble seeing other life forms in a room that is pitch black.

I don’t know what my comment had to do about being in a situation where you don’t see it

The part where you used the word "emitting".

If you cannot see it, then it is not emitting electromagnetic energy in the visible spectrum

I was pointing out that literally everything we see is the result of that object emitting energy which our eyes then sense