If we become the Machines, we still eliminate Humanity.
Not really. We redefine humanity, not eliminate it. Would you consider the change from us being single-celled organisms to what we are today an act of eradication?
I don't believe these are analogous. Single cells are still required for the multi-cellular organism composition.
The Machine can (and I argue will) shed all biology. The biological will, inevitably, become unnecessary.
True: but is that not a transformation? We created a thing which carries-on our legacy, one way or another. They would consider us their progenitors. How is that any different from the way in which we view ours? They wouldn't exist without us, and vice-versa. Symbiosis. What's to say that isn't what happens at a cellular level? Cells choose to create more complex beings, at the expense of their own independent existence. In my opinion, this overlaps perfectly with what's happening today— as above, so below.
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