The speed of my car can also go up and down quite quickly and yet it would be crazy to try to drive it using a moving average of how fast I was going over the p

The speed of my car can also go up and down quite quickly and yet it would be crazy to try to drive it using a moving average of how fast I was going over the prior 60 seconds. "I dunno. I realize I slammed on the brakes ten seconds ago, and my speed over the past minute has certainly gone down a bit? But I'm still going really fast... I should keep holding this brake down." Meanwhile, of course, you are stopped on the exit ramp of the highway. I'm sure you'll figure it out, though, in another 50 seconds.