What do Karl Marx, Sigmund Freud, and Malcolm Gladwell have in common? Are interesting theories more significant than true ones? And what has been keeping Angela up at night? Plus: an important announcement about the show.

Why does listening to No Stupid Questions feel like you’re hanging out with your best friends? Why did the whole world take it personally when Princess Diana died? And how do “parasocial relationships” affect your mental health?

Are things really as bad as they seem? Has Gen Z given up hope for the world? And why was the father of positive psychology a lifelong pessimist?

Does a surplus of information create a shortage of attention? Are today’s young people really unable to focus? And do goldfish need better PR?

What’s the difference between narcissism and high self-esteem? Does social media fuel arrogance or self-consciousness? And do people get less toxic with age?

How many bottles of wine are regifted? What’s wrong with giving cash? And should Angela give her husband a subscription to the Sausage of the Month Club?

How does social media exploit our evolutionary instincts? How dangerous is it to post about your children online? And does Angela regret talking about her daughters on the podcast?

Would you steal Halloween candy? Should people be required to identify themselves online? And why did Angela go trick-or-treating in a trash bag?

Is it better to explain a mistake or just accept responsibility? What’s the difference between an excuse and a justification? And why is it important to remember that you’re not a pizzeria on the Jersey Shore?

What’s wrong with donating to charity for the tax write-off? Should we think less of people who do volunteer work to pad their resumes? And why is Angela stopping women in public parks to compliment them?

How do you come back from being “canceled”? Are we more likely to forgive someone if they cry? And what makes a successful public apology?

When are negative emotions enjoyable? Are we all a little masochistic? And do pigs like hot sauce?

What makes normal people do terrible things? Are there really bad apples — or just bad barrels? And how should you deal with a nefarious next-door neighbor?

Who decided that we’re fully mature at 18? Should 16-year-olds have the right to vote? And why are young people bringing their parents to job interviews?

What are Mike and Angela’s favorite songs to cry to? Can upbeat music lift you out of a bad mood? And what is Angela going to sing the next time she does karaoke?

What is the evolutionary purpose of laughter? What’s the difference between Swedish depression and American depression? And why aren’t aliens interested in abducting Mike?

Also: are the most memorable stories less likely to be true? Stephen Dubner chats with Angela Duckworth in this classic episode from July 2020.

Why does the U.S. use Fahrenheit when Celsius is better? Would you quit your job if a coin flip told you to? And how do you get an entire country to drive on the other side of the road?

What happens when machines become funnier, kinder, and more empathetic than humans? Do robot therapists save lives? And should Angela credit her virtual assistant as a co-author of her book

Do you see yourself the same way others see you? What’s the difference between self-perception and self-awareness? And why do Mike and Angela both hate fishing?