I thought, “I love my son. He’s three, and cute and little and comical. But I am also afraid for him, because he could be hurt. If I had the power to change that, what might I do?” I thought, “He could be twenty feet tall instead of forty inches. Nobody could push him over then. He could be made of titanium, instead of flesh and bone. Then, if some brat bounced a toy truck off his noggin, he wouldn’t care. He could have a computer-enhanced brain. And even if he was damaged, somehow, his parts could be immediately replaced. Problem solved!” But no—not problem solved—and not just because such
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