> What stopped them? This would be impossible to get past ethical review in any institution who has such a thing. You'd be forcing people to have a trip, which

> What stopped them? This would be impossible to get past ethical review in any institution who has such a thing. You'd be forcing people to have a trip, which may or may not be pleasant for them, for days, with no guidance on wtf is happening to them. Depending on the person, that's some pretty heavy trauma. You could tell people what to expect, but that ruins the blind part. I still think you'd have no chance of passing review anyway.