Hours listened, nothing learned

So I wrapped a podcast in retrieval practice.

Podcasts are entertainment pretending to be learning.

You finish an episode, feel smarter, and twenty-four hours later you couldn’t pass a five-question quiz on it. The walk felt productive. The retention was zero. That’s the asymmetry nobody talks about. Millions of hours of “personal development” listening producing the feeling of progress without the thing itself.

I’ve been reading Make It Stick.¹ The research is blunt: passive intake doesn’t encode. What encodes is retrieval; being forced to pull the information back out. Especially when it’s a little hard, and especially when it’s spaced over time.

So I asked the obvious question. What if you bolted that onto a podcast?

Here’s the loop I built:

• Starter quiz before you listen (primes the brain, surfaces what you don’t know)

• Listen to the episode

• Quiz immediately after

• Same quiz 24 hours later

• Same quiz one week later

All audio. You stay on the walk. The form factor doesn’t change. The cognitive demand does.

I used Claude to build it and Eleven Labs for the voice. The proof of concept is one episode: Lenny Rachitsky’s interview with Dan Shipper on the AI paradox.

Try it on a walk and tell me if the post-listen quiz feels different than the pre-listen one.

• Primer quiz: https://franksprotos.com/recallfm/

• Post-listening quizzes: https://franksprotos.com/recallfm/quiz.html

• The episode: The AI paradox — Dan Shipper on Lenny’s Podcast

1. Shout of to Laura Carpenter for the recommendation, and props to Marco Benevides for jump starting the teams reading binge of it :)