It does not take a lot of views for Amazon to link stuff together. I have a wholesaler dealing in closeouts (end of life products) that sends out emails with n

It does not take a lot of views for Amazon to link stuff together. I have a wholesaler dealing in closeouts (end of life products) that sends out emails with new inventory. I noticed once when looking at one item, that 2-3 entirely unrelated items showed up under "Customers who viewed this item also viewed", all that had been previously offered by the same wholesaler. I don't know how big their email list is, but it's probably in the double to low triple digits. So several dozen people, at best, viewed all of these items, and that was enough for Amazon to pick up and correlate them. A different time, I was advertising multiple entirely unrelated products with the same associates ID. One of them ended up, similarly, on the other item's page, presumably either due to the same people viewing both ads or them correlating by associate id.