Cybernetics

Cybernetics is the study of complex systems. It it's simplest form it states that simple cause and effect is not an appropriate mechanism to use as a model in biological systems (such as a human being or system of human beings).

Cause and effect is of course a key element in formal logic and predicate calculus. Formal logic appears to be a system that to a greater or lesser extent is hard-wired into the human mind. Hence predicate calculus can be effective in utilizing these patterns to create change.