And, right, important things are things that might eat us, like things coming towards us.

Conversely, some changes don’t grab attention. Slow changes, slow fades, slow movements, that kind of thing.

Let’s pause here for a second, because I’d like to show you a demo which illustrates how you often don’t notice change.

Matt Webb, S&W, posted 2006-04-13 (talk on 2006-02-08)