Microdevices are "promising", they have a future. But they have natural competition. We can crisper viruses to cure hereditary diseases - viruses that can enter cells and create proteins that enter the nucleus where they cut and replace parts of the DNA. We do that for 10 years. We are still decades away from doing the things with microdevices that we can do with microorganisms.
The technology that they actually have, that they don't tell us about, is 50 years more advanced than what we are allowed to know about.
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