According to John Sorenson, Ether 11 makes clear that from the time Com ruled, the system was in trouble. The internal dating of the account puts the sensational destruction at San Lorenzo close to the time of the troubles mentioned in Ether 11:4 and 6, although of course we have no way to confirm a direct correlation. [John L. Sorenson, An Ancient American Setting for the Book of Mormon, p. 119]