There’s been a huge development for people who may someday swallow a battery, Lego, coin, doggy toy, or even an AirPod (one guy found out that even after passing through his digestive system, it still worked and had 41% battery). Researchers have developed a magnetic slime robot that could be deployed in the body to retrieve objects. There are no immediate plans for medical testing, but one can imagine a future in which a doctor’s order for a case of a swallowed Lego is a big old magnetic turd.
