How do you think about e-mail in your head? What is the path of an e- mail message from one location to another? Make a list of what you learned. What are the distinctions, and why do they exist?...

Extracted text: How do you think about e-mail in your head? What is the path of an e- mail message from one location to another? Make a list of what you learned. What are the distinctions, and why do they exist? Consider the varying levels of detail (or abstraction) in various models.