This post is probably a hard-sell for people who hate math, but I bet developers will come back to it when the next post on cryptography hits HN. Good job pres

This post is probably a hard-sell for people who hate math, but I bet developers will come back to it when the next post on cryptography hits HN. Good job presenting modular arithmetic as clock arithmetic. The concept is easy to understand. When you start generalize it is when the magic of Abstract Algebra will happen.