Explore the evolutionary puzzle of unconditional helping among friends in this thought-provoking lecture by Daniel Hruschka. Delve into the origins of human friendship, examining how it develops, varies across cultures, and relates to social ties in other species. Discover the benefits of selfless aid as a buffer against hardship, while considering the challenge of avoiding exploitation by false friends. Gain insights into the complex dynamics of human relationships and their evolutionary significance through Hruschka's research and analysis.