The Biggest Ideas in the Universe is a series of videos where I talk informally about some of the fundamental concepts that help us understand our natural world. Exceedingly casual, not overly polished, and meant for absolutely everybody.

This is Idea #20, "Entropy and Information." The increase of entropy over time is responsible for the difference between past and future, and is thus in a very real sense the most important thing in the universe. We talk about how this works and what it has to do with the concept of information.

My web page: http://www.preposterousuniverse.com/

My YouTube channel:    / seancarroll  

Mindscape podcast: http://www.preposterousuniverse.com/p...

The Biggest Ideas playlist:    • The Biggest Ideas in the Universe!  

Blog posts for the series: http://www.preposterousuniverse.com/b...

Background image: https://www.pxfuel.com/en/free-photo-...

#science #physics #ideas #universe #learning #cosmology #philosophy #entropy #information