When I watched the conference I was very surprised that someone actually asked about what he had to say about PhysX, though it’s sad he didn’t say anything positive. While that isn’t surprising as it seems as id Tech 5 uses are proprietary physics engine, plus they plan on open-sourcing the engine in the future.

That’s really unfortunate that the author of that video decided to purposely misguide everyone. It seems to be quite a trend around YouTube.