An anonymous reader writes: Valve's Chet Faliszek has been in the video game industry for a long time, and his writing has been instrumental for games like Half-life 2, Portal, and Left 4 Dead. Valve is now developing a virtual reality headset, and Faliszek was on hand at a VR-centric conference where he spoke about how the technology is coming along. He said, "None of us know what the hell we are doing. We're still just scratching the surface of VR. We still haven't found out what VR is, and that's fine. We've been making movies in pretty much the same way for 100 years, TV for 60 years and videogames for 40. VR has only really been [in development] for about a year, so we're at Pong level." One of the obstacles holding VR devices back right now is getting the hardware up to snuff. Faliszek says, "There's one thing you can't do and that's make people sick. It has to run at 90 frames per second. Any lower and people feel sick. Telling people they will be ok 'Once you get your VR legs' is a wholly wrong idea. If people need to get used to it then that's failure."