2. Mayim Bialik: “I Started Crying When I Realized How Beautiful the Universe Is”

She’s best known for playing neurobiologist Amy Farrah Fowler on The Big Bang Theory, but the award-winning actress has a rich life outside of her acting career, as a teacher, mother — and a real-life neuroscientist.  Steve Levitt tries to learn more about this one-time academic and Hollywood non-conformist, who is both very similar to him and also quite his opposite.