For those regretting the absence of John Carmack and his traditional brain-exploding keynote address from this year's QuakeCon, we have this trailer showing the entirety of a recent address the Oculus Rift technical director gave to some students at SMU. If you are preparing to hunker down and view this, you should pop an extra large batch of popcorn, as the video runs two hours and twenty minutes. Thanks DSOGaming.