Why is our universe fine-tuned for life? and Is our universe the only universe?:
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.
Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is just one of many in the “multiverse.”
A friend writes to say that he thinks Greene sounds like a snake oil salesman. Readers?
Greene, a string theorist, has said, “I now hold only modest hope that the theory will confront data during my lifetime.” Data used to be a starting point for science, not a wistful modest hope. And that is what ideas like string theory and the multiverse do. They move science from evidence-based propositions to the search for data that confirm metaphysical naturalism.
His stuff’s snake oil? If so, it’s snake oil from another universe; we can’t show it’s fake because it isn’t even here.
See also: Multiverse cosmology: Assuming that evidence still matters, what does it say?
In search of a road to reality
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