One of the standard defenses of evolution—the Epicurean idea that the world arose spontaneously—is that science is a self-correcting, feedback process and, as such, will always lead to the truth. This is such an ignorant claim it is difficult to know where to begin in rebutting it. First of all, at its best science is a process that takes as input a set of observations and produces as output some generalizations, sometimes called models or hypotheses or theories or laws, about how nature works. A scientist might observe the planetary motions in the sky and hypothesize that the planets travel in elliptical orbits about the Sun. Or a scientist might observe the movement of objects and theorize that the product of the mass and acceleration of an object equals the force applied to it. These are valuable theories that condense a vast amount of observations into simple and useful formulas that can predict future events. But for every one of these successes there are hundreds of failures. Sometimes these failures are rooted out only after decades or centuries of contentious debate with proponents who are convinced they’ve got it right. Indeed, there is no guarantee of a timely resolution of scientific failures. There is no guarantee of a resolution, period. Every engineering student knows that feedback loops do not guarantee accuracy—they don’t even guarantee stability. Read more