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In animals with lungs, the oxygen molecules automatically move from where there’s a bunch of oxygen, to where there isn’t much—the bloodstream.
It costs energy rather than happening automatically.
But one of the cool things about this country is that if you're born here, no matter where your parents are from, you're automatically a citizen.
And they can just come into the country, have a baby at a hospital, paid for by you and me, and then that baby is automatically a citizen.
And third, and this is the masterstroke, you need a so-called engine of reason, a system of mechanical rules by which you can automatically derive new facts from that library as surely as a calculator performs arithmetic.