Though thread/knot simulation is a very difficult problem. I’m involved in a VR project for surgery that simulates knots for surgical suturing. We have two full time physics phds on it and they’re delivering some promising results but it’s far from good enough to teach IRL knots.
Yes - we work with simulation of laparoscopic surgery, where several types of knots must be made on stiff inarticulate instruments in constrained spaces at difficult angles. It is quite an incredible skill.
Yes, though the traditional surgical approach requires little more than rope and string to understand. Maybe training with some instruments and fruit/cadavers. The VR is overkill for this purpose imho.
I was a sceptic initially about it, but from my time with the topic of simulation training, I’m finding that there is a shortage of people who want to be doctors. And many of those that do want to go down that path are good at all sorts of things but this whole knot tying can be very challenging. Some people just have a really hard time with it.