Is everything in the universe invisible in its natural state? This question sounds strange, and maybe it's a bit hard to see what I mean, but I'll try to be as clear as possible. Imagine yourself outside of the universe, and that there are no other living beings in it. Since the light isn't reaching your eyes, you can't see the universe. The light inside the universe doesn't mean anything to you, it's just energy. Now, if you have, let's say, a room with nobody inside, being outside of the room would be the same as being outside of the universe when it comes to the meaning of light in the room. Yes, I understand, you can't see an object if your eyes are not exposed to the light reflected off an object, but what if there is no living being to interpret the reflected light? So, maybe a better question is what does light mean to a human if there is nobody around to form an image from the light?
Thank you very much.