Why is our universe fine-tuned for life?

Here’s a new Ted Talk from Brian Greene. The material is pretty heavy, but simple enough for non-scientists to at least grasp. “At the heart of modern cosmology is a mystery: Why does our universe appear so exquisitely tuned to create the conditions necessary for life? In this tour de force tour of some of science’s biggest new discoveries, Brian Greene shows how the mind-boggling idea of a multiverse may hold the answer to the riddle.”

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