some also forget water vapor's ability to displace oxygen.
When doing Calculated elevation (what the engine actually cares about) Water grains is very important. Every extra water grain displaces oxygen content in the air.
Take NM, Friday it's forcasted 20% day and 25% night max humidity.
Darlington NC on a sunny day like this saturday is 53% day 63% night.
The desert may be high, but it's dry. More oxygen content than a humid climate.
And yes, elevation does play a role in power, not as much in an FI car as an NA car, but it does hurt it. But there are many other factors that go into Calculated Elevation that need to be accounted for. Not just Feet above sea level. I have seen tracks close to sea level end up 3000+ feet calculated.
did you also know that in africa you can do AC just with adding water vapor into the air?... preatty efficient ....