Dear all, I have a question on the basic concept of branching process. Say, in such a process, different objects of a generation don't interfere with each other. Consider an email forwarding analogy where one node forwards an email to some other users. And those users will continue forwarding the email to others....thus forming a cascade. However, it's possible that different nodes may forward the email to one same node. In this sense, is the process a branching process? Thank you a lot.