"rewrites can go back and forth"

TV How The Daily Show is written. Two staff writers outline to some journalism students how a script is put together:

"These first drafts go to the producers, head writer, and John Stewart. The rewrites can go back and forth until nearly 3 p.m., when rehearsals start. Stewart makes even more changes so the jokes flow in his own voice. Taping starts at 6 p.m.

"The next day, it begins anew.

"Parang joked that his first script for The Daily Show was so heavily edited, all that survived of his own words were, “Welcome to The Daily Show, my name is Jon Stewart.”

The main message of the post is that nothing is easy. Everything requires hard work. Oh look, it's that feeling in the pit of my stomach again.