V1 is always less then Vr. So explain that phenomena when takeoff is not ASDA limited ?
No. V1 can be co-incident with VR (and often is.) I am not sure what "phenomena" you are referring to? If you are not runway length limited or limited by another factor, then your V1 speed is the same as your VR speed. What is it you want me to explain?
However I assure you there is no such place in US nor Europe where you cant descend to 10.000ft for more then two hours with jet speeds. Care to point one out
I didn't say there was. What I said was:
Believe it or not, there are even parts of the world where terrain can preclude decents below 10,000ft for periods longer than 30 minutes.
The regulatory requirement is no doubt based on a conservative set of assumptions.
You are clearly arguing simply for the sake of arguing.