Amazon isn’t Transitive

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transitive2You know on Amazon.com how, when you’re looking at an item, at the bottom it will sometimes suggest combinations?  Usually I just see one suggestion, but sometimes there are two:

transitive

Really?  These are frequently bought together?  I can believe that bed pillows and lap desks are often bought together (at least, more often than other combinations) but even if the tan pillow is often bought with a lap desk, and a lap desk is often bought with the pink shag pillow, it doesn’t follow that customers often buy tan and muppet-pink bed pillows together, in the same shipment, even for the Super Saver discount.  It’s an odd combination, though surpassed by a similar triple that I found but didn’t think to save and couldn’t recreate:  a home theater system that is “Frequently Bought Together” with HDMI cords and another complete home theater system.  Perhaps to encourage you to have a backup at the ready in case you don’t like the first.

The photo in the upper left is actually another strange combination, but not about transitivity:  one brand of lap desk is purportedly frequently bought with a different brand of lap desk.  I guess this demonstrates that the Frequently Boughts, while not reflexive, is also not anti-reflexive.

One Response to “Amazon isn’t Transitive”

  1. Barry Leiba Says:

    I’m not sure whether this is better or worse than the time when I was looking at recordings by cellist Yo-Yo Ma, and Amazon suggested a book about yo-yo tricks.

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