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Starts With A Bang

New Podcast: Starts With A Bang #35 — Do We Live In A Multiverse

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Travel the universe with Dr. Ethan Siegel as he answers the biggest questions of all

Our Universe may not be all there is, was, or ever will be, after all.


There’s been a lot of speculative ideas put forth about the Multiverse, and I dare say that a great many of them are nothing more than wishful thinking. But that doesn’t mean the Multiverse itself is ill-motivated at all. Rather, if you take two of our best theories that have been well-confirmed in a wide variety of different ways, you’re going to find that you arrive at a bizarre but unavoidable picture: one of an inflating spacetime, eternal to the future, where regions that look like our Universe, complete with a hot Big Bang, are spawned continuously.

The evidence might not be there, observably, to confirm or deny the existence of a Multiverse. But as a theoretical consequence, it certainly has a motivation that’s far stronger than practically anyone realizes. Here’s the cosmic story.


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Travel the universe with Dr. Ethan Siegel as he answers the biggest questions of all

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