Smart elevators are strange elevators, because there is no control panel in the car; the elevator knows where you are going. People tend to find it unnerving to ride in an elevator with no buttons; they feel as if they had been kidnapped by a Bond villain. Helplessness may exacerbate claustrophobia. In the old system—board elevator, press button—you have an illusion of control; elevator manufacturers have sought to trick the passengers into thinking they’re driving the conveyance. In most elevators, at least in any built or installed since the early nineties, the door-close button doesn’t work. It is there mainly to make you think it works. (It does work if, say, a fireman needs to take control. But you need a key, and a fire, to do that.) Once you know this, it can be illuminating to watch people compulsively press the door-close button. That the door eventually closes reinforces their belief in the button’s power. It’s a little like prayer.

Era un bell’aneddoto, ma non era vero che il tasto di chiusura delle porte degli ascensori è finto (lo raccontava un fantastico articolo del New Yorker). Almeno non nei molti che ho provato sul campo, e funzionano.