> from two points we infer that they were there the whole intervening time? This is not deductive, it's abductive. The reasoning is weak but it's all the reaso

> from two points we infer that they were there the whole intervening time? This is not deductive, it's abductive. The reasoning is weak but it's all the reasoning paleoarchaeology offers. TBF this is basically all science but we kind of smear the probability aspect and call it scientific fact.