Earlier quoted context omitted.
> GDP is artificial …all economic metrics are artificial. Society is artificial. How are you defining an economy? Or is your original statement (“economy is fossil fuels”) just a tautology? > don't know how you read that from what I say There is no political system on the planet that can enact and survive economic collapse. If that’s what’s required, this is a fool’s errand. Fortunately, again, you’re wrong. It’s not…
> How are you defining an economy? I said it above. The economy is what we produce and consume. Because the metrics economists use (like GDP) make no sense does not mean that the economy does not exist. There are physical metrics to measure how the economy is doing (that I mentioned above). For instance, you can look at how many tons of stuff are being moved by trucks. If many trucks move a lot of stuff, then it mean…
Gross tonnage is a good input into "what we produce and consume." It's incomplete, however. Grossly. It excludes all services, for example. It's why we abandoned it as a measure after like the early industrial revolution.
(A better one is electricity production, which you can estimate remotely from fuel levels and thermals. It’s also woefully incomplete—the nutters trying to forecast based solely on it are influencers, not fund managers or policymakers, for good reason.)
> Do you know how they correct for inflation?
Yes.
> There is no way to "measure" inflation
This is nonsense. It must be estimated. But so must e.g. "the surface that is being constructed" depending on how one defines surface construction.
There are various measures of inflation of various utility. Some are used to deflate GDP.
Mankiw's Principles of Economics might be a good start if you're serious about your questions. Because by your metrics, decarbonistion is a folly—the measures are probably made up anyway!