“Thus if we want to explain why human thought tends to try out every conceivable solution for any problem with which it is faced, then we can appeal to a highly general sort of regularity. The method by which a solution is approached is usually the same; it is the method of trial and error. This, fundamentally, is also the method used by living organisms in the process of adaptation. It is clear that the success of this method depends very largely on the number and variety of the trials: the more we try, the more likely it is that one of our attempts will be successful.”

-Karl Popper in Conjectures and Refutations