I've been editing a giant book for Dopey. It's just over 700 pages, and they gave me seven days to do it—averaging out to a difficult but doable 100 pages per day.
Except they sort of forgot to send it when they were supposed to, and then I still had to spend one more day wrapping up some other work before I could get started, and then I was down to five days to finish 700 pages, or an average of 140 pages a day. That's reeeeeeally pushing it.
And then there was today. It was Father's Day, obviously, plus M.H. did another free download day for his book, which was a bit distracting in its sheer awesomeness. Also, I got re-riled on the feeding kids in schools issue and became aware of an awesome, must-read Guardian article on obesity and the food industry. So all told this weekend, I managed to edit only about 200 pages.
Now I have 500 pages to finish in three days, which is 166.67 pages per day, and the word I think you're looking for is "doomed."