You mean, stop and not press the button? In this case, the light never appears. The switch must be pressed eventually in the future so that the circuit sends th

You mean, stop and not press the button? In this case, the light never appears. The switch must be pressed eventually in the future so that the circuit sends the message back in time. If you find out a way to "trick" the system by never pressing the switch, it never sends the message in the first place. The mechanism doesn't work by predicting whether you will press the button in 1 second. It works after you have actually pressed the button!