The end of this (from Gamer) is pretty much it. Skip to about 3:30 for the part I'm talking aboot. But, it's a good enough thought. If someone were to experience, first hand, the pain free, easy life it is being thin/fit/normal weight through "true virtual reality" (something akin to Sword Art Online, ie. actually experiencing it in your brain rather than seeing it), then would that be enough to change them in the real world.