Step 1: Initial Contact
A person, let's call them "Alice," reaches out to a friend, "Bob," with a question or inquiry that requires a response.
Step 2: Response Eruption
Bob responds, and his response contains a question or a request for clarification.
Step 3: Chain Reaction Initiation
Alice responds to Bob's response, and her response contains another question or a request for information.
This is the point of no return. The e-mail chain reaction has begun, and it will not stop until one of the parties involved gets tired of responding.
Learn more about Chain Reaction Maintenance.