> a drop of 10-20 mph > the vehicle speed changes slightly 20mph is not a "slight" change. That's easily a full third of your speed in a freeway (or a quarter

> a drop of 10-20 mph > the vehicle speed changes slightly 20mph is not a "slight" change. That's easily a full third of your speed in a freeway (or a quarter if you're speeding), literally the difference between a street and a freeway. And that's easily half your kinetic energy you'd be losing. > The only way this would result in an accident is with someone else speeding and tailgating Surely you can't pretend you've thought of every possible scenario this could turn into an accident? If nothing else, people can momentarily miss the fact that the car in front of them randomly slowed down 20mph, especially when other cars are maintaining their speeds. Doubly so if they're glancing somewhere else to change lanes or watch out for other dangers or whatever. A million things can go wrong that I can't pretend to think of, and I'm shocked you just so confidently ruled them all out. As I see it, just because some of us are mortals, that doesn't excuse letting small mistakes bare our mortality in the middle of a highway.