Images Courtesy of Donald E. Ingber
A theory has only the alternatives of being wrong or right. A model has a third possibility: It may be right but irrelevant.
When molecular biology techniques propelled reductionism to a new height 30 years ago, scientists far and wide began isolating cellular parts. During that time, researchers described the cell as a membrane packed with protoplasm or a balloon filled with molasses, its contents moving around randomly. The idea that the cell was a highly structured, three- dimensional system was a notion that only...