Before “indoor positioning” became a product category, I experimented with iBeacon transmitters placed around the house to track my own location room-by-room. The goal was to understand whether Bluetooth Low Energy beacons could reliably trigger automations — lights, music, climate — based on which room you were actually in, not which room you told Alexa you were in. The tech was early and the results were mixed, but the experiment taught me more about signal propagation, interference, and the gap between demo and daily-use than any whitepaper could.