I also have experience driving at over 100.
The fact is that driving habits have far more to do with the accident rates than simple speed - as well as speed DIFFERNTIAL. There is a REASON that deaths per mile travelled went DOWN when the interstate speed-limit was raised.
Your original argument, that I responded to, was that even under ideal conditions, 85 was not controllable with mere human reflexes "even under perfect conditions". That is simply false. To even begin to argue, you had to introduce all kinds of other factors not related to human reflexes.
MILLIONS of people travel at such speeds daily without having an accident, or even a close call - unless you are saying that Germans are an inherently superior race. :)