The Diary of a CEO: Brian Greene on AI Consciousness, God, Free Will and Reality

What if reality, consciousness, and even heaven are human inventions? In this condensed version of The Diary of a CEO, Steven Bartlett and physicist Brian Greene tackle the biggest questions in science and philosophy—from simulation theory and string theory to AI alignment, free will, God, and the future of the universe. In the original episode’s full conversation, now distilled from hours into minutes, Greene explains why artificial intelligence could one day become conscious, why religion and science aren’t always opposites, and how longevity research may change our relationship with death. You’ll also hear his thoughts on mental health, aliens, and the possibility that our universe ends in a cold, cosmic fade-out. Listen now to get the key ideas in minutes.