The depth of thought that Carmack is able to apply to every detail of a problem is astounding. Granted, he's been working on VR for years now and pioneering rea

The depth of thought that Carmack is able to apply to every detail of a problem is astounding. Granted, he's been working on VR for years now and pioneering realtime graphics before that, but his perception about what the end user wants out of a product is second-to-none.