Even with conservative assumptions about the rate of paleo-Indian expansion, the destructive front would reach the Gulf of Mexico in three to five centuries. Within a thousand years it would strike Tierra del Fuego. In the archaeological record, Martin pointed out, this hurricane of slaughter would be visible only as the near-simultaneous appearance of Clovis artifacts throughout North America—and “the swift extermination of the more conspicuous native American large mammals.” Which, in fact, is exactly what one sees.
