The privacy tension comes from the hardware needed to make that work. The carts include basket facing cameras, outward facing cameras, location tracking systems, scales, touchscreens, and payment terminals, turning an ordinary grocery basket into a rolling sensor platform. Instacart frames Caper as a way to personalize the store, reduce out of stocks, lift sales, and add retail media revenue. Shoppers get convenience, but they’ll also leave behind a richer trail of products, movement,...