Comments by "David Terr" (@dcterr1) on "The Most Misunderstood Concept in Physics" video.
-
This was an excellent explanation of entropy and the second law of thermodynamics! Although I've studied physics for a good part of my life, I've always been mystified by entropy, life in particular, and how evolution seems to violate the second law. I'm not even sure if I'm completely satisfied with your explanation of how life evolves due to the low entropy sunlight shining on the Earth. I have a theory of my own regarding evolution. According to Darwin's theory, evolution of life on Earth results due to natural selection, meaning that the species that are most well adapted to environmental changes are those that survive and thrive, but this is at the expense of those species that don't make it, which can be thought of as the high entropy waste product of evolution. Similarly, technology allows our society to advance at the expense of various forms of waste, such as waste heat from energy production and consumption as well as various forms of pollution. Finally, our spiritual evolution allows humanity to become more enlightened, but this requires work in the form of education and self-discipline, the waste products being the heat produced by our brains and bodies as well as the defeat of less enlightened ideas. But where is all this evolution ultimately leading us if the universe will ultimately end in a heat death? Fortunately, that won't happen for at least a googol years, so I'm not too worried about it yet!
1