Statistician: Changes in the Sun’s luminosity correlate exceedingly well with average land temperatures on Earth.
Conclusion
The Sun's luminosity does not essentially control land temperatures on Earth.
Evidence
Ask any professional meteorologist and they'll tell you that's not the case. (Climate is so complicated, that no significant aspect, like land temperatures, could be controlled by a single variable, like Sun luminosity).
Evaluate
At first it seems hard to disagree with the logic of this argument. If you accept the premise that , then it doesn't seem like there's any way to argue that the Sun's Luminosity does control land temperatures.
We'd have to start impugning whether the professional meteorologists' opinion is something we want to trust here. Are they an unqualified appeal to authority?
That seems silly; climate should be their area of expertise.
It was at this point in The Struggle, that I noticed that the first person actually acknowledges that .
So the meteorologist objected to the statistician by saying something that the statistician had already acknowledged.
If would be like if you said, and then someone retorted,
Goal
Point out that the meteorologist's putative (supposed) objection was appealing to a fact that the statistician had already acknowledged.