The sad thing is we do have better efficiency. We have just plowed that efficiency into bigger vehicles.
It isn't just cars that are doing this. Another example is house efficiency. We can make housing heating and cooling efficient. Windows have become vastly more efficient than they have been historically. But what do we do instead of realizing this efficiency? We make the windows bigger so they end up having the same efficiency as 20 years ago, just bigger.
We also have made our house much, much larger and therefore more expensive to heat and cool.
It is just back ass way of thinking. But of course, all of this bigger is better consumption reflects positively on our GDP (our measure of productivity) while we continue to pollute and consume limited resources...
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"My hands are on fire. Hands are on fire. Ain't got no more time for all you charlatans and liars."
- Old Man Luedecke
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