The origin of life on earth -- a lasting scientific mystery -- may have a lot to do with alkaline hydrothermal vents. These are geysers - like vents found in the ocean floor. Marine biologists have long noted that they create the sort of chemically rich and energy intensive environment around them that mimics the electrochemical conditions found in cells. So ... maybe (thinking that thought in reverse) the cells of the world are indeed to this day mimicking that sea floor environment. In this context, with the vents themselves offering abundant energy, scientists can model the creation of RNA molecules, some of which prove to be self-replicating, although in a highly imperfect fashion. Does it make sense to call this already "life"? Probably not. Call it "proto-life" if you will. There is some irony here, though. We often think of life as paradigmatically bound up with the absorption of sunlight. Light, through photosynthesis, becomes plant mat...
Moving from the lofty epistemologyical/metaphysical realm of yesterday's quote to the questions of national character. A thought from a wise French observer of our country. I accost an American sailor and inquire why the ships of his country are built so as to last but for a short time; he answers without hesitation that the art of navigation is every day making such rapid progress that the finest vessel would become almost useless if it lasted beyond a few years. In these words, which fell accidentally, and on a particular subject, from an uninstructed man, I recognize the general and systematic idea upon which a great people direct all their concerns. [ Democracy in America Vol. II, Part One, Chap. 8.]