Tomorrow's Mini Medical Robots Could Squirm Like Maggots

Conventional pharmaceuticals aren't always the best way to treat an ailment. Drugs are often imprecise, unpredictable, or come along with tricky side effects. Medicine is always trying to move on to more targeted treatments. And soon, robots will be one of those options: small and mobile, they could theoretically deliver pharmaceuticals right where they're needed, tear through tumors, or rebuild broken bits of your body. Of course, these kinds of treatments are decades away--which might not be a problem, depending on how you feel about maggots.