The argument assumes that others ways did not exist from Palea to Lithos at that time. The author argues that since the Brim River is very deep and broad, and no Palean boats, which is the only tool to cross the river, have not been found, baskets found in Lithos was not made by Palean. The statement relies on the assumption that except cross river, none of other methods would exchange Woven baskets by Palean people to people of Lithos. It is entirely possible that there are business people from other countries bought Woven baskets from Palean and sold it to Lithos later on. It is also possible that there is a land linked between Palean and Litho. People in Palean could travel to Lithos by land and exchanged their Woven baskets for some Lithos goods. It this occurs, whether there are boats found will not matter. If this …show more content…
Specifically, the author assumes that since the Brim river is deep and broad now, it was in the same pattern in the past, not influenced by geological changes. Such an assumption is unwarranted; as we all know, a river may erode its band and riverbed and will get broader and deeper as time passes. The Brim River might be just a small brook when Palean people lived there such that Palean people could cross river simply by wading. It would be illogical to conclude that people cannot easily pass Brim River now indicates people in prehistorical time could not cross the river without any tools because river changes over