I agree with you. I can often hazard a reasonable guess at what people are typing or writing based on the sound, and of course, hearing the touch tone sounds of

I agree with you. I can often hazard a reasonable guess at what people are typing or writing based on the sound, and of course, hearing the touch tone sounds of a phone makes it relatively easy. Similarly, I will often turn off all the lights and navigate around my house/room by pure touch and sound, which is surprisingly easy given how much credence we give to sight as the paramount sense.