In his book The Black Swan, Nassim Taleb talks about “Platonicity,” which is defined as the desire to cut reality into crisp shapes. This is a form of dividing up a large domain into a smaller domain. This, by definition, means establishing certain boundaries. This is a key part of how people experiment and thus of how they model … and thus of how they ultimately explain things. So let’s talk about what this has to do with testing.