Originally Posted by
Andy Somnifac
And that is why I stated that power output varies depending on terrain for many riders. Yes, all things equal, it holds up. However, things are rarely equal outside of a controlled lab experiment.
but in order to remain objective we need to discuss in such terms, as opposed to special cases where the conditions favor your argument.
However, rides with climbs are slower than flat rides of the same distance with the same power output,
every time. That right there is absolute. It was to do with air resistance, like AdelaaR said.