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Slate Money · October 2026
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.
Yeah, which I find doesn't work very well. I don't
use that. But my agent, my BB.
…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.
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.…
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
privacy nerd. So I think.