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Imagine a neighborhood diner: chrome-edged counters, white enamel mugs, phonebook-thick laminated menus, and, of course, cakes posing in the stage lights of the glass display case near the front.

You bounce in at 7 a.m., fresh from a run, and settle down in a red pleather booth that goes fwhump when you sit. A waiter passes by with a pot of hot coffee—he catches your eye and pours a mugful. For one clean second, the universe purrs.

Mid-menu, your eyes drift back to the cake case: Inside sits a triple‑layer chocolate erupting fudge like lava and a lemon meringue dome wobbling slightly—the dessert world’s seismograph.

“Egg-white omelet,” you say to your waiter. But a slice of the meringue shows up on the table before you finish talking.

“I saw you looking,” says the waiter with a wink and a bow. 

It’s got egg whites at least. And hey, fruit! you think. Before you can pick up your fork, three slices of the triple-layer chocolate cake clatter onto the table, spilling the meringue into your lap.

“I ordered an omelet!” you yell, pointing at the menu. But you notice it has changed—the omelets have vanished, the salads have disappeared, even the coffee is gone. The menu has transformed into an endless variety of cake: red velvets, Boston creams, and strawberry shortcakes. 

“Here, we only serve what you really want,” the waiter says.

You try to scream, but you can’t. Your mouth is full of cake. 

Social media: A diner that serves you what you look at

For 15 years, the internet has been this diner. Social media served whatever our gaze grazed and our fingers clicked—what we call revealed preference—because that’s all the intent it could discern. 

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Become a paid subscriber to Every to unlock the rest of this piece and learn about:

• Revealed versus stated preferences in digital interaction
• How AI listens to stated preference over reflexive clicks
• The alignment advantage of language models