The radius of convergence is like a Lakshman Rekha- If you are on the right side of it, you are safe; If you are on it, no guarantees; If you are on the other side, off to Sri Lanka it is
(credits: Prof SK Ray via Piyush)
In order to learn to be funny, you must learn to avoid not being funny. Hence the usefulness of this lesson. Of course, there are many ways of not being funny, but I only want to illustrate a parti...
