Why see only in the visible portion of the electromagnetic spectrum? Let's go ultraviolet! Infrared! Let's extend our hearing range, our memory capacity, our immune defenses, our life span, our brainpower.
The question that no one has answered, though, is what will this do to our species? Will we simply reinvent ourselves, taking evolution into our own hands? It seems that we are already doing this. And will we then become less human?"
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