I think for both examples VR becomes an immersion add on to a physical machine. Both examples are interesting because they involve much larger forces than hapti

I think for both examples VR becomes an immersion add on to a physical machine. Both examples are interesting because they involve much larger forces than haptics will provide. For example you can imagine a ski trainer like an artificial wave so you get the real forces and the sense of exposure you get looking down a large mountain. For cutting meat you need a simulation medium that can be cut with a knife and change density somehow on command.