When I married my wife, I promised her that I would listen to her every day as if for the first time. Now that's something I fall short of on a daily basis. But that's not all. Sound places us in space and in time. If you close your eyes right now in this room, you're aware of the size of the room from the reverberation and the bouncing of the sound off the surfaces. And you're aware of how many people are around you because of the micro- noises you're receiving. And sound places us in time as well, because sound always has time embedded in it. In fact, I would suggest that our listening is the main way that we experience the flow of time from past to future. So, 'Sonority is time and meaning a great quote. I said at the beginning, we're losing our listening. Why did I say that? Well there are a lot of reasons for this. First of all, we invented ways of recording, first writing, then audio recording and now video recording as well. The premium on accurate and careful listening has simply disappeared. Secondly, the world is now so noisy, many people take refuge in headphones. But they turn big, public spaces like this, shared soundscapes, into millions of tiny, little personal sound bubbles. In this scenario, nobody's listening to anybody. We're becoming impatient.