>>48-50
Thank you so much.
I think the original meaning is
"That book is so exciting you can't sleep once you start reading it."
(Does it make sense?)
In Japan you learn at school what >>50 says in the first 4 lines
and most of us felt >>44 was a nonsense.
The person(s) who insisted >>44 was correct mentioned "Chomu's tough movement".
(maybe Chomsky? I don't know).
According to the theory, the person(s) said,
"that book" was thought to be an object of "reading" in the while-clause.
Anyway thank you again for the information.