> The front line of science is a messy place; a mostly wrong messy place Reading the article, the most interesting aspect was the concept of a "half-life" of k

> The front line of science is a messy place; a mostly wrong messy place Reading the article, the most interesting aspect was the concept of a "half-life" of knowledge. This, of course, applies not just to the front lines, but also to the rear guard. By definition, a new idea that proves to work well obsoletes an old one that didn't work quite as well.