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FS Felix Salmon Felix Salmon Writes on finance and markets, now as a senior writer at Bloomberg, after years as chief financial correspondent at Axios, and is the author of The Phoenix Econ...

“If you look at the experiments that have been done with various agentic AIs, so if you tell them to go out and buy whatever the cheapest thing is, what they often do is they kind of look at your emails and understand who you are … And invariably, if you are like a richer, more middle-class person, they wind up coming back with more expensive stuff, even if you said, find me the cheapest.”

Slate Money · October 2026

“If you look at the experiments that have been done with various agentic AIs, so if you tell them to go out and buy whatever the cheapest thing is, what they often do is they kind of look at your emails and understand who you are … And invariably, if you are like a richer, more middle-class person, they wind up coming back with more expensive stuff, even if you said, find me the cheapest.” — Felix Salmon, Slate Money

Salmon had been arguing that AI shopping agents could become the bargain hunters the rest of us free-ride on, comparing toothpaste prices nobody has time to check. This is his "big asterisk." Elizabeth Spiers adds that vendors could pay to steer the agents.

Transcript

Slate Money Around 29:32 into the episode
Felix Salmon

Yeah, which I find doesn't work very well. I don't

Emily Peck

use that. But my agent, my BB.

Felix Salmon

…time for that? We go in and we buy the fucking toothpaste because, yeah, come on. But an AI can actually go and comparison shop and say, oh, this toothpaste is both bigger and cheaper. I'll buy the one that's bigger and cheaper. And so that. Could be a force bringing prices down. That could be like the bargain hunter that all of the rest of us can freeload on. But the big, big asterisk is that if you look at the experiments that have been done with various agentic AIs, so if you tell them to go out and buy whatever the cheapest thing is, what they often do is they kind of look at your emails and understand who you are and they get an idea of who you are. And invariably, if you are like a richer, more middle-class person, they wind up coming back with more expensive stuff, even if you said, find me at the cheapster.

Elizabeth Spiers

Well, another thing is, and this is kind of a second-order consequence, is that one of the concerns people have is that the more data that the agents sort of have on you and the more they understand your ecosystem, there are vendors who could ostensibly pay Facebook to only show you their products.…

Felix Salmon

I do think that you are going to be a late adopter, Elizabeth, but I also think they are inevitable. Whether or not Elizabeth Spiers them, I think millions and millions of people are. Well, I'm a data

Elizabeth Spiers

privacy nerd. So I think.

Speaker names from our own diarization · position estimated from where the line sits in the episode

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