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BSA Distinguished Lecture
"Universe or Multiverse?"
Presented by Andrei Linde, Stanford University
4 pm, Berkner Hall Auditorium
Wednesday, October 7, 2015, 4:00 pm
Hosted by: Peter Wanderer
Cosmological observations show that the universe is very uniform on the maximally large scale accessible to our telescopes. The best theoretical explanation of this uniformity is provided by the inflationary theory. Andrei Linde will briefly describe the status of this theory in view of recent observational data. Rather paradoxically, this theory predicts that on an extremely large scales, much greater than what we can see now, the world may look totally different. Instead of being a single spherically symmetric balloon, our universe may look like a "multiverse," a collection of many different exponentially large balloons ("universes") with different laws of low-energy physics operating in each of them. The new cosmological paradigm, supported by developments in string theory, changes the standard views on the origin and the global structure of the universe and on our own place in the world.