I don't think anybody has a unit for entropy.
They are falling a fallacy.
Just because you entered the world, you have increased entropy. Every time you eat, you increase entropy.
I can't believe this got published.
I don't think anybody has a unit for entropy.
They are falling a fallacy.
Just because you entered the world, you have increased entropy. Every time you eat, you increase entropy.
I can't believe this got published.
"Entropy is an extensive property. It has the dimension of energy divided by temperature, which has a unit of joules per kelvin (J K−1) in the International System of Units"
S = k log w. [1] S has units of energy divided by temperature.
> Every time you eat, you increase entropy.
Globally, yes, but it is very common to take the entropy of a bounded system. One can talk about e.g. cardiac entropy - the number of microstates (e.g. differentiated cells or even their individual molecules) that can form the same state observable at the boundary of the heart. One can likewise talk about cellular entropy (the boundary being the cellular membrane), or about the entropy of an organism (the boundary being its outer surface, like the human skin and related exposed structures).
The entropy of all of these is much lower than that of a container of 70 kg of water at 310 kelvins; you can swap a molecule of the water in one part of a container with that in another part without wrecking observables of the water at the boundary, repeating the process until you have moved every molecule of water. You can't swap many brain cells with liver cells and expect the organism not to die; you can't swap molecules from the cellular membrane with molecules with the genetic molecules in a cell and expect the cell not to die; and so forth.
"Non-swapability" goes hand-in-hand with "low entropy".
> Just because you entered the world, you have increased entropy
Globally, with the boundary at the horizon of the observable universe, entropy always increases.
As a human embryo grows into an adult, the entropy at the boundary of that individual's outer surface (mostly) increases, because the overall matter increases, with the increase in the number of differentiated cells offsetting the decrease in entropy from the non-swapability of cells that have differentiated into e.g. smooth muscle or glial cells. However, growing humans are still very low entropy.
Once the mass of an adult human stabilizes, it makes sense to think of the entropy of fatty vs non-fatty tissues. Adipose is relatively high entropy (you can move bits of it from one cell to another without killing the cells or the adult human; this is a normal part of fat metabolism even, and moving adipose tissues around is routine in cosmetic surgery) compared with e.g. the kidneys. The skeletal musculature, grossly, is lower entropy than fatty tissues, because moving a large piece of a whole muscle from one joint to another (e.g in some orthopedic surgeries) affects the observables of the adult human (e.g. by changing his or her gait or the range of motion of the affected joint(s)). However, as one "bulks up", there is more skeletal muscle, so the entropy of each, and the overall entropy of the individual, increases.
> I can't believe this got published.
vs
> They are falling a fallacy.
https://www.wikiwand.com/en/Divine_fallacy
A correlation between Boltzmannian entropy of an individual and the individual's lifespan is interesting.
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[1] https://www.wikiwand.com/en/Boltzmann%27s_entropy_formula