Carmack is a workaholic of legendary productivity. If there are truly 10x programmers out there, he is undoubtedly one. Another important point is that it's no

Carmack is a workaholic of legendary productivity. If there are truly 10x programmers out there, he is undoubtedly one. Another important point is that it's not games he develops, it's game engines. Other people do most of the game logic and design. Working on a 3d display for those engines doesn't seem so far removed from that, and of potential value to future id/ZeniMax work.