Science, at least as it has been practiced for the last century or two, begins by assembling facts—the data—and then seeks an overarching theory to unify and explain those facts. Whether it’s the big bang theory or plate tectonics or germ theory, from the cosmic to the microscopic, the approach is the same. Ignoring or denying inconvenient facts is not permitted. Trying to uncover facts that disprove a treasured theory is encouraged. This is part of the modern scientific method, which holds that theories should be subjected to rigorous attempts to prove them false before they become widely accepted (or discarded as incorrect). In the law, however, the process works in exactly the opposite direction.