Researchers conducted an experiment to see how people make decisions in a game when social factors are removed. They had participants play a game with computers instead of other people. The computers copied the behavior of previous human players. The game involved making offers and accepting or rejecting them. The results showed that even after multiple rounds, people did not always make the best decisions based on their own interests. This was likely because they were unsure of what others would do and did not fully learn from their past experiences.