Like I have said, I have drove millions of miles. Somebody driving 20 per below flow of traffic has never put me close to a accident. (Me driving 20 faster than flow has) But one thing I wish is when you are on open road, decide what speed you want to drive and hold that speed or slow if somebody is passing. You cruise control is everybody's friend. The 'he's passing speed up' is bullsnot. If I come up behind a slower car, I can check traffic behind, decide what will be better, slow a little, or drop the hammer. And if you step out to pass, get it done, and get out of that left lane. No matter ho fast you drive, somebody wants to go faster. The more time vehicles run side by each, the more traffic will stack up behind. And no traffic engineer can tell me the stacks are safe.