> .. they say that its sum is 1/2. And this answer does not help us, since we attach no sense here to saying that the lamp is half-on. Maybe a lamp is a bad ex

> .. they say that its sum is 1/2. And this answer does not help us, since we attach no sense here to saying that the lamp is half-on. Maybe a lamp is a bad example, it is clearly half-on: PWM modulated with 50% duty cycle and infinite frequency. I don't see any Problem ;)