summary computers are good at doing mathematics when we create system to translate some piece of information into numbers (such as we do with text and ordinals or with space and coordinate systems)computer programs can process these numbers quickly and efficiently but while our caesar cipher program here can encrypt messages that will keep them secret from people who have to figure it out with pencil and paperit won' keep it secret from people who know how to get computers to process information for them (our brute force mode proves this large part of figuring out how to write program is figuring out how to represent the information you want to manipulate as values that python can understand the next will present reversi (also known as othellothe ai that plays this game will be much more advanced than the ai that played tic tac toe in in factthe ai is so good most of the time you'll be unable to beat it