John Carmack had a lot to say at this year’s QuakeCon. He almost talked for 90 mins without taking a break, but we know he can do that. However, he also revealed a lot of important information about Rage, and some things that flew past our head. Rage will take approximately 20GB + when installed on the Xbox 360. So, if you’re planning to get the game for the Xbox 360, better check your HDD space.

This is not the first time when an Xbox 360 game had such a ridiculous space requirement for installation. A few games come to mind, namely Final Fantasy XIII, Lost Odyssey, etc.

Carmack also revealed that the Blu Ray has worse latency than the DVD, at least on the PS3. He said, “It’ll be nice when we don’t have that physical element we don’t have to be working around or scheduling around.”

It’s no secret that id is giving priority to the console versions and Carmack mentioned that they are treating the PC as a “muscular” console. He was also amazed at how far PC tech has come.

“I spend a lot of time smiling and being amazed at how much power we have in modern PC’s.”

You can check out Carmack’s Keynote below, and oh, keep a bottle of water with you, since it will take a while.