I love the Cannonball, I respect the history, but that is bullshit. You can do what you want but at least be self-aware.
Speed may not often cause an accident, but it will be the difference between a bad accident and a fatal one. That is what speed limits are about. Reducing the impact of an accident probably caused by something else. Also realise that amongst the cohort of "people driving" that something else is inevitable, not chance. It is always happening to someone, just perhaps not you that day. If we all drove 160mph road tolls would skyrocket.
You can bring up the autobahn if you like, or the red centre in Australia, but neither of those remotely resemble an American intetstate or the driving culture of the states. The red centre also has a speed limit now.