this post was submitted on 28 Jun 2026

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How would you like to pay your NaN pounds? (programming.dev)

submitted 1 day ago* (last edited 1 day ago) by Avicenna@programming.dev to c/programmer_humor@programming.dev

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A NaN spotted in the wild.

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[–] rmuk@feddit.uk 3 points 1 day ago

See that window in the top left? It's a combination photovoltaic cell and IR receiver, so the tag can be powered indefinitely from the shop lights and they can use ceiling-mounted IR blasters to update them. There's no return path so the blasters just repeatedly transmit the entire inventory and price list, over and over.