30 DEC 2013 by ideonexus
Gompertz Law of human mortality
What do you think are the odds that you will die during the next year? Try to put a number to it — 1 in 100? 1 in 10,000? Whatever it is, it will be twice as large 8 years from now.
This startling fact was first noticed by the British actuary Benjamin Gompertz in 1825 and is now called the “Gompertz Law of human mortality.” Your probability of dying during a given year doubles every 8 years. For me, a 25-year-old American, the probability of dying during the next year is a fairly ...Folksonomies: statistics mortality
Folksonomies: statistics mortality
Your chances of dying double every eight years.
24 DEC 2013 by ideonexus
How Physicians Were Once Like Today's Economists
The moral game of blame attribution is only one subtype of misattribution arbitrage. For example, epidemiologists estimate that it was not until 1905 that you were better off going to a physician. (Ignaz Semelweiss noticed that doctors doubled the mortality rate of mothers at delivery.) The role of the physician predated its rational function for thousands of years, so why were there physicians? Economists, forecasters, and professional portfolio managers typically do no better than chance, y...John Tooby describes a past when you were more likely to die from seeing a physician and likens it to economics and other forecasters who do no better than chance.