Why do you assume that I am unaware of the role of mitochondria in distance running?
Also, the way you have phrased a few things over the past few posts is misleading. If you feel you have been misrepresented then take more care in your writing.
My point about aerobic capacity, which I have stated many times is that it is relatively easy to maximize. There is I feel a general misconception about this. Why would it take more than a few weeks at most for an out of shape runner to achieve this in both slow and fast oxidative fibers? For those of us who train seriously and regularly (even slow but serious runners) we are already at or very near maximum mitochondrial mass, the same applies to capillarization. Thus What makes the real difference in performance are factors other than aerobic development.