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Dividing a number by zero doesn’t produce an infinitely large number as an answer. The reason is that division is defined as the inverse of multiplication; if you divide by zero, and then multiply by zero, you should regain the number you
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“Dad told me that you could follow any of the novel’s layers as you read it, and then start the book all over again, focusing on an entirely different layer. At the end of the book, he intentionally left loose ends and said he did this to send the readers spinning out of the story with bits and pieces of it still clinging to them, so that they would want to go back and read it again. A neat trick, and he pulled it off perfectly.”
― Dune
― Dune
“the boundaries between different categories are often arbitrary, but once some arbitrary boundary exists, we forget that it is arbitrary and get way too impressed with its importance. For example, the visual spectrum is a continuum of wavelengths from violet to red, and it is arbitrary where boundaries are put for different color names (for example, where we see a transition from “blue” to “green”); as proof of this, different languages arbitrarily split up the visual spectrum at different points in coming up with the words for different colors. Show someone two roughly similar colors. If the color-name boundary in that person’s language happens to fall between the two colors, the person will overestimate the difference between the two. If the colors fall in the same category, the opposite happens. In other words, when you think categorically, you have trouble seeing how similar or different two things are. If you pay lots of attention to where boundaries are, you pay less attention to complete pictures.”
― Behave: The Biology of Humans at Our Best and Worst
― Behave: The Biology of Humans at Our Best and Worst
“Politics.” Doob sighed. Luisa chuckled. “I hear you, sugar. I’m not gonna say you’re wrong. But I have to warn you that this is the word—‘politics’—that nerds use whenever they feel impatient about the human realities of an organization.”
― Seveneves
― Seveneves
“Hospitals, like every other industry, have gotten more efficient by cutting costs, which means virtually no excess capacity—on a per capita basis the United States has far fewer hospital beds than a few decades ago. Indeed, during a routine influenza season, usage of respirators rises to nearly 100 percent; in a pandemic, most people who needed a mechanical respirator probably would not get one.”
― The Great Influenza: The Epic Story of the Deadliest Plague in History
― The Great Influenza: The Epic Story of the Deadliest Plague in History
“The army had data on 120 training camps—99 imposed quarantine and 21 did not. But there was no difference in mortality or morbidity between camps implementing quarantine and those that didn’t; there was not even any difference in how long it took influenza to pass through the camp. The story, however, isn’t quite that simple: the epidemiologist who performed the study looked not just at numbers but at actual practice, and found that out of the 99 camps that imposed quarantine, only a half dozen or so rigidly enforced it. Those few did benefit. But if the overwhelming majority of army bases in wartime could not enforce a quarantine rigidly enough to benefit, a civilian community in peacetime certainly could not.”
― The Great Influenza: The Epic Story of the Deadliest Plague in History
― The Great Influenza: The Epic Story of the Deadliest Plague in History
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