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Aug 21, 2021

This week’s guest is comologist and science communicator Ethan Siegel. Ethan helps me understand some basic physics as we dive into:


How the universe came to be (even before the Big Bang)

The difference between the early, the late early, and the late universe (now)

Will the universe end?

Agreement, observation, and the scientific method

Why we can’t see all the stars that are out there, and why that’s a good thing.

Cosmic inflation, Dark energy, and what you should be afraid of

Why we should care about cosmology

The role of kindness in teaching


... and much more!


Ethan’s website is

It’s full of links to his articles, books, podcast episodes, and recordings of his talks.


There’s even a page with pictures of Ethan in a bizarre array of costumes. No joke!


Also, as referred to in the episode, here’s a link to the Victor Wooten talk we love so much: