When two cars travel 3 seconds apart at 25 mph they can fit in a certain size space. When those cars accelerate to 75 that space needs to be three times bigger. What you are asking for here is gridlock!!!. Atlanta area traffic would have to constantly be going 20 mph to fit all the cars that use the highways daily.
Pay attention, use the left lane for passing only, and for god's sake tighten up the formation so we can all get to where we are going. If you think it is dangerous perhaps it is but we do it daily here in the ATL and somehow the roads aren't littered with bodies.