Heyerdahl was a Norwegian adventurer with a passion for cultural anthropology. After a trip to Polynesia convinced him that Polynesian culture bore traces of South American cultures, he built a raft—the Kon-Tiki—and sailed it from South America to Polynesia to demonstrate the possibility of such contact. While his book about the voyage was an international bestseller, anthropologists have largely dismissed his theories. Why did he deliberately burn his ship during a 1978 expedition? Discuss