What's reading inertia? Well it's when you're reading a text passage and you can't stop before you read a bit that you don't want to read. Here's an example: in Vice City one of the key moments in the game is when you have to off Lance Vance because he's - see? If you're still working through Vice City as I am, you read all the way to "see?" which, in the original text would have been a big plot twist. You knew a spoiler was coming, but even with the mental handbrake on, your eyes keep skidding on to the goods and a little part of your mind is doing that time-dilated "nnnnnooooooooooOOOOOOOOOO!" thing.

Yes, I know, technically most walkthroughs are just one big spoiler, but I don't know about you but generally I go to a walkthrough to get a hint on how to solve just one thing I'm stuck on. So, to people who write walkthroughs, thanks for the excellent efforts in writing them, but please learn these words: Spolier. Alert.