From John Carmack's tweet ( http://twitter.com/#!/ID_AA_Carmack/statuses/97375462447263744 http://twitter.com/#!/ID_AA_Carmack/statuses/973754624472637... ): I

From John Carmack's tweet ( http://twitter.com/#!/ID_AA_Carmack/statuses/97375462447263744 http://twitter.com/#!/ID_AA_Carmack/statuses/973754624472637... ): I semi-joke that after conquering space, I want to work on nuclear fusion. I hadn’t seen this before: generalfusion.com