Now, with the discussion widening to include Easter Island and the Pacific, we really are in Thor Heyerdahl territory. He showed that balsa rafts could cross the Pacific, that reed boats could cross the Atlantic and were painted on the walls of Tassili in the Sahara when it was green and fertile. He also reckoned that the Berbers crossed the Atlantic. Even though genetics later disproved some of his ideas about the direction of movement and settlement of islands in the Pacific, his books are still worth reading and are mind expanding. He died a year or so ago aged about 80 and was still working on pyramids in Peru at Tucume.
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