It really is amazing how easy it is to just get sucked in. I've been playing video games for my entire adult life, and with that along with how I think, it's difficult for me to get... "Immersed" into a game, I guess? I see mostly things like hitboxes and latency and advantages given to the AI to balance the lack of free thought. A sort of (very, very) uncool Neo, seeing games in terms of its code and mechanics. I wouldn't be surprised if this is pretty typical of a non-casual gamer.
Then I picked up Raw Data. The images and video don't give it justice. Something as simple as looking down at your "hands" really is trippy. The gun mechanics - reloading, shooting, holstering - really feel natural. Even the swordplay is good. Anyway, I got hit by gunfire after failing to dodge it, and it was the first time for me to be taken aback by a game like that. If you have a Vive, I highly recommend it.