Renowned theoretical physicist, Brian Greene, explains why the life that you know, and think to be real, may be just a computer simulation.

Greene is the co-founder of the World Science Festival, which has a new initiative called "City of Science" which is a 5-event series. All events will take place in one of New York City's five boroughs throughout this fall.

"City of Science" is free and open to all New Yorkers of all ages. Learn more about where and when it will take place here. You can also follow the events on Facebook, Twitter, and Instagram.

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