This scales up to about 10-15 lines of code before it becomes impractical in most modern imperative languages. Functional languages due to their higher level co

This scales up to about 10-15 lines of code before it becomes impractical in most modern imperative languages. Functional languages due to their higher level constructs get better mileage out of the technique but there is still a small practical limit to the technique. It also doesn't work if your team isn't co-located.