There are tons of books on these abandoned civilizations, all based on the theory that they “failed” (as opposed to being abandoned). It seems quite inconceivable to most authors that anyone would abandon something so wonderful as a civilization in which seventy percent of the populace live like pack animals. Although in some cases there’s evidence of violent endings, there’s no reason to suppose that those who abandoned their “vehicles” were unable to “get out safely.”

DATE: 12 May 1997
UPDATE: 12 May 1997
ID: 160