The guy did pioneer 3D gaming, improve linux networking in the process (to support his games), build vertically landing, reusable rockets years before SpaceX's

The guy did pioneer 3D gaming, improve linux networking in the process (to support his games), build vertically landing, reusable rockets years before SpaceX's and play a pivotal role in modern VR. I would not bet against his understanding on technical topics where he's done a serious deep dive. Also it was more than a year, not just a week.