Editing Branch predictor (section)

===Random branch prediction===
Using a random or pseudorandom bit (a pure guess) would guarantee every branch a 50% correct prediction rate, which cannot be improved (or worsened) by reordering instructions. (With the simplest static prediction of "assume take", [[compiler]]s can reorder instructions to get better than 50% correct prediction.) Also, it would make timing [much more] nondeterministic.