There’s quite a bit of stuff in the universe, to put it mildly.
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The Black Hole Entropy Enigma
Hosted by Matt O'Dowd
Written by Matt O'Dowd
Graphics by Luke Maroldi
Assistant Editing and Sound Design by Mike Petrow
Made by Kornhaber Brown (www.kornhaberbrown.com)
Hundreds of billions of galaxies, each with hundreds of billions of stars, each with … rather a lot of particles in them. And then there’s all the stuff that isn’t stars. The dark matter, black holes, planets, and the particles and radiation in between the stars and galaxies. Not to mention space itself, with its fluctuating quantum fields, dark energy, blah blah. Stuff EVERYWHERE! But… is the universe actually made of stuff? An increasing number of physicists view the universe – view reality as informational at its most fundamental level, and that its evolution through time can be thought of as a computation. And then there’s the simulation hypothesis – in which that computation is engineered by … who knows what? How big a memory bank would you even need to compute a universe? Seriously, let’s figure it out. How much information does it take to describe the entire observable universe? And after we’re done with that, I’m going to have an even cooler challenge question for you.
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Mayank M. Mehrota
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