[He shrugs, effectively dropping the first subject in the process. That's Sayaka's choice.]

Yes and no. Make no mistake, when we destroy these dimensions, they are effectively erased from existence. [He's not gonna sugarcoat things anymore.] You see, they are fractured dimensions created from deviations in the original dimension that I hail from. If we allow too many to be created, then the prime dimension would be compromised. There is more to it than that, but that is it in the simplest of terms.