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FQXi2016

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The possibility that there might be many parallel worlds has just become a little more likely.

If there's a multiverse, then how many of its component universes are like our own?

If there's a multiverse, then how many of its component universes are like our own?

Why are physicists unsure about what it means to say that something has happened? Anthony Aguirre and Sean Carroll explain.

Some uncomfortable problems in our understanding of life.