I know AsD/CFT is non-perturbative string theory. But it describes negative curvature which doesn't describe our universe at all. So you are saying that if in the future we can't find any AsD/CFT that doesn't describe our universe, then the dual idea is refuted. Also an actual AsD/CFT would be sD/CFT but then the analogy or duality no longer holds because the antidesitter thing is done. So why is there high hopes reserved for the AsD/CFT programme?