The inspiration for this theory comes from the programming language Joy, designed by Manfred von Thun. It would be very helpful if the reader is basically familiar with Joy. In Joy, data is manipulated through a stack (there are no variables); in this way, it is similar to the programming language FORTH. However, Joy goes one step further and permits (and actively encourages) pushing programs themselves onto the stack, which can then be manipulated just like ordinary data. In fact, the theory he...