By "sick", the worst cases are feelings of headache, nausea, and dizziness. I've never seen or heard of someone actually throwing up. The most severe cases happ

By "sick", the worst cases are feelings of headache, nausea, and dizziness. I've never seen or heard of someone actually throwing up. The most severe cases happen in about 1% of people. It takes actively ignoring growing symptoms and forcing yourself through the experience to get that far. 90% of people have no problem at all. The last 9% of people will feel a mild dizziness. If they take it slow, don't spend more than 15 minutes in their first time, and ramp up usage, they'll be fine. And mostly, this isn't a VR problem. The hardware and OS-level features have eliminated large swaths of the causes of sim sickness. The one they can't solve is application design. The thing that causes sim sickness in people today is artificial locomotion, moving the virtual view without moving the physical body. Moving users without user input, or accelerated linear movement from joystick input. And the article calls out that the test app used joystick movement. This is well known in the industry to cause issues for a large number of people. Yet the author lets the researcher claim "our environment doesn't do anything to cause [simsickness]" without pushback.