It had taken me a while to work out what I got from this. You didn't watch in the hope of seeing something exciting. Just the opposite. You watched because the very lack of discernible activity, of presented subject matter, made the view itself seem more real. If you watch something in particular, all you see is that thing happening. You see the moment, the event, and you are distracted from the long, slow tide of eventlessness underlying it. If you watch nothing, then you see everything. You see the thing as it is.