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Fully programmable microrobots operate at cellular scale using nanowatt power
(interestingengineering.com)
This is a most excellent place for technology news and articles.
Nah, it won't be an apocalypse. Just more of the dystopia we're all completely accustomed to. You'll get ads based on the content of your blood. Police will show up at your door minutes after you ingest any illegal drug. And you know that thing where LinkedIn and dating apps are like "we may or may not have found you a match, pay us to find out!" You'll get notifications like that about cancer.