How many pages is it

About a thousand, depends on formatting.

Yeah, that's a lot, and many people complain about it. On the other hand, it provides great insights which can also be found in other books, but reading those other books together would be even more pages. Also, people who read online debates regularly, probably read such amount of text every few weeks, they are just not aware of it, because "following 15 facebook links every day, each on average two pages of text" doesn't feel like "reading 1000 pages of random text every month", even if in reality it actually means that.

I believe reading the book is a time well spent (I wish I had a time machine to send me the book back when I was a teenager; would probably be my favorite one), but that of course is a personal opinion.