[thaumasiotes]

You appear to be talking about something fairly different from what my comment addresses.

> it doesn't matter if you can remember if Lay's southern barbecue was in stock it matters if, when strolling down the aisle, you were able to see the majority of the chips in one place.

Perhaps, but I didn't ask about this. The challenge is that you are told in advance that you're looking for Lay's Southern Barbecue. Remembering whether it's there is not difficult, because it's the only thing you want. The difficult part is determining whether it's there.

> In a physical store it's largely possible to sequentially read the inventory even if you can't quickly search for individual items randomly quickly.

Again, this badly misunderstands what I was saying. It is not possible to sequentially read the inventory in a physical store; if this were possible, determining whether or not a particular product existed in the store would be trivial. Instead, this task is one that people routinely fail at.

[zamadatix]

We're talking about the same thing unless your stance is 100% of people known 100% of the product SKUs they want when looking for things and they know these before they start looking. For those that don't go in knowing the want exactly "Lay's Southern Barbecue 9.5 oz Bag for $2.98" your scenario quickly breaks down into the points I discussed which is why I brought them up.

In more Amazon terms someone is going to search "tablet" not "New Apple iPad Air (10.9-inch, Wi-Fi, 64GB) - Rose Gold (Latest Model, 4th Generation) sold by Apple". Even if searching "Apple iPad" I get Amazon Fire tablets high in the results.