Did you know that you can program things which live on a stack? Did you know you can pass instructions and have them put onto a stack, or taken off the stack? Did you know you can swap elements on the stack? Or write a program to prove that 2 + 2 = 5? Stack‑based programming dates back to the 1960s, and we at CodeRanch are starting new fora about programming paradigms. Come and find the different ways you can program your code.