Sorry, what's the point of the universe? We're bound to Earth by any rational understanding of physics and physiology.
"Right, because food today is more expensive than food yesterday" Love the sarcasm, not the shallow argument (I appreciate that food is, seemingly, cheaper than yesterday).
Human behavior is not thermodynamics. Agriculture is. Food is cheaper today because:
1) N2 fixation thanks to Dr. Haber
2) Large scale potash mining and shipping.
3) Unsustainable use of other necessary agricultural inputs
Point 1) is fairly stable in the medium term (i.e. my daughter's potential children's life span ~ next 100 years to 400 years) because energy is cheap and effectively getting cheaper. Population won't grow too fast as to run out of energy, if it did we're really f.ed, and global energy use has stabilized and might decline.
Point 2), however, is a nasty one. Run out of potash, then you run out of K and therefore food production above carrying capacity. You can turn to (say) oceans to mine K, but that's expensive.
I appreciate the econ argument that "you can't run out of resources because the price goes up until you don't want to use them" but that ultimately trash. You won't go hungry, because you might afford a doubling in price of your groceries. It's the Ethiopian kids whose lives balance everything out.
Point 3) Acquirers are running out so, for example, California's agricultural production is in peril.
See... thermo!
Are there alternatives that are more "sustainable"? Sure. But they all come with (an unknown to me) maximum carrying capacity.
As to human behavior not being modeled by thermo... that's irrelevant. People will shift preferences to eat lower quality, higher yield crops due to prices changes and all.
Of course those prices changes are (partly) due to... thermodynamics!
"Right, because food today is more expensive than food yesterday" Love the sarcasm, not the shallow argument (I appreciate that food is, seemingly, cheaper than yesterday).
Human behavior is not thermodynamics. Agriculture is. Food is cheaper today because:
1) N2 fixation thanks to Dr. Haber 2) Large scale potash mining and shipping. 3) Unsustainable use of other necessary agricultural inputs
Point 1) is fairly stable in the medium term (i.e. my daughter's potential children's life span ~ next 100 years to 400 years) because energy is cheap and effectively getting cheaper. Population won't grow too fast as to run out of energy, if it did we're really f.ed, and global energy use has stabilized and might decline.
Point 2), however, is a nasty one. Run out of potash, then you run out of K and therefore food production above carrying capacity. You can turn to (say) oceans to mine K, but that's expensive.
I appreciate the econ argument that "you can't run out of resources because the price goes up until you don't want to use them" but that ultimately trash. You won't go hungry, because you might afford a doubling in price of your groceries. It's the Ethiopian kids whose lives balance everything out.
Point 3) Acquirers are running out so, for example, California's agricultural production is in peril.
See... thermo!
Are there alternatives that are more "sustainable"? Sure. But they all come with (an unknown to me) maximum carrying capacity.
As to human behavior not being modeled by thermo... that's irrelevant. People will shift preferences to eat lower quality, higher yield crops due to prices changes and all.
Of course those prices changes are (partly) due to... thermodynamics!