Are we alone in the universe? Asking the big questions
Page last published: 21 Mar 2012
Listen to David Christian from the Big History Institute as he explores the likelihood of space invaders and looks at other big questions facing the human species today.
David presented this talk on humanoids at the the International Conference "The Global Future - 2045: Modeling and Predicting Worldwide Dynamics: Prospects for Humanity and Universal History". held in Moscow, Russia in February 2012.
Learn more about the work of David on Macquarie's website for the Big History Institute.