Maybe i wasn't clear enough
those watts/kg numbers and the like are a good tool in measuring performance, choosing best training regime, etc
but the watts/kg numbers do not reflect back to performance causes like in a
http://en.wikipedia.org/wiki/Bijection
simpler, good performance => high watts/kg but there is no function from watts/kg values to what cause the performance
those claims like "a human can only go up to xxx watts/kg" are ********, that's why no serious official organization takes them seriously.
ffs, they cant even measure those watts/kg numbers right, put 3 machines on same bike and you get +/- 15% differences between them