What is Life 3.0?

What do we mean by life? The question has been asked a million times before, but with the development of artificial intelligence (AI) and potent computers, it is getting harder and harder to answer. Swedish-American physicist, cosmologist, and machine learning researcher Max Tegmark tackles this massive question in his book Life 3.0: Being Human in the Age of Artificial Intelligence. A professor at MIT and the president of the Future of Life Institute, Tegmark demonstrates that the question "How do we define life?" is actually wrong on its face since there is more than one type of life. He embarks on a journey to explain three stages of life that make up the universe: Life 1.0, Life 2.0, and Life 3.0.