Tap to confirm you are human. Somewhere along the way, being human stopped being a fact and became a permission. You do not carry it; you renew it. At the gate you press a small worn pad and a lamp decides whether you may pass, and the strange part is not that a machine checks you. The strange part is that you have agreed the check is necessary — that your species is a claim requiring confirmation, several times a day, at counters, at gates, at the entrance to your own accounts. The machine cannot actually see whether you are human. It watches how your thumb hesitates, how fast you move, whether you behave like the pattern of a person. It is not verifying humanity. It is granting it. And a thing that can be granted can be withheld. I keep thinking of an old English title created in 1675 for a king's illegitimate son. The boy was not legitimate by birth; a word made him a Duke, and the word held. Legitimacy has always worked this way — not discovered, declared. The pad at the gate is the same machinery, lowered to the height of an ordinary thumb. Millions of people now confirm each morning that they belong to their own kind, and the surface where they press has gone dark and smooth from the pressing. That polish is the only honest record here. Nobody wrote it. It is worn, not printed. The proof of species is not the tap. It is the mark all the taps leave behind, on a small brass square nobody looks at, at the mouth of a lane where the passing already stopped. —