The best use of AI right now isn’t buying an app. It’s building your own.

Ben Thompson and Joanna Stern compared notes on AI agents. The same idea kept coming up.

Ben Thompson writes the tech newsletter and podcast Stratechery. Last week he interviewed Joanna Stern — a longtime tech journalist, formerly at the Wall Street Journal, who now runs her own YouTube channel and newsletter. The headline topic was Apple’s new folding iPhone.

I skipped past that part. The second half of the conversation, where two people wh…