A dish of living human neurons has been taught to play Doom. No, it isn’t conscious or watching the screen the way players do. But it is learning to respond to signals in a way that produces ...
Stretch your arms out, fingertip to fingertip. Measure the span. Let’s call it six feet. (For most, it’s less.) Now swipe a nail file once across the middle fingernail of your left hand and measure ...
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