I learned welding in high-school so I'm far from a professional. But I agree you get a lot of feedback from the tactical sensation of the stick / filament and t

I learned welding in high-school so I'm far from a professional. But I agree you get a lot of feedback from the tactical sensation of the stick / filament and the sound, which would be hard to reproduce in an app. I've heard from people who have used this VR welding system that there are some key differences between it and real welding, notably for the stick welder version. To simulate the stick being consumed, a servo motor pulls the stick through the back of the handheld part. This results in the balance of the handheld part changing noticeably as you weld.