Not so much an extra feature but...
Being able to see further into both sides of the light spectrum. Past UV and IR.
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No, it a great feature! (SORRY FOR EXTREMELY LATE REPLY!)
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So basically you want to not see because of all the crap you want to see that we dont see because its everywhere and if we could see it then we couldnt see because we see too much. If thats not too confusing to understand.
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Animals such as the mantis shrimp see several spectrums we can't. And they seem to manage. Human-3 Mantis shrimp-12 I believe...