What technological advancement made 'smart pills' with ingestible sensors commercially viable for widespread medical use?

Smart pills represent one of the most significant innovations in medical product development in recent years. These ingestible sensors and medication delivery systems are changing how we monitor patient adherence, gather diagnostic data, and deliver targeted treatments. This poll tests your knowledge about this cutting-edge medical product technology that's transforming healthcare delivery and patient outcomes.

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Development of miniaturized RFID technology that can be safely ingested and powered by stomach acid
Integration of quantum computing processors small enough to fit in capsule form
Advancement in nanobot technology allowing microscopic robots to be contained within standard pill casings
Discovery of organic semiconductors that dissolve harmlessly after transmitting patient data