From which I deduce that it's the empty right hand seat that actually kills people, and it's not clear how to simulate that.
Its impossible to simulate an empty right hand seat. Sure the student can do all the flying, all the navigating, all the RT, or even go as far as not speaking to their instructor at all. But we all know that when the s**t hits the fan the instructor will take control and forget everything about the student pretending to be solo, and rightly so. I'm just saying solo can't be simulated, your either solo, or your not.