You know those times when you're sitting in class and there's dead silence because it appears that no one else has read the particular article you're supposed to have read, so you eventually venture a comment that you hope is correct based on the few things the professor has said (because you had forgotten about the article until five minutes before class and so only skimmed it in the most cursory manner) and all of the sudden you've started a fierce debate about the article and people are saying, "I agree with Marin!" and you're thinking "oh boy, I wouldn't do that if I were you, I was making all of that up."?
Welcome to graduate school.
