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A comment on Scientists Reverse Brain Damage in Drowned Toddler?. Parent comment
https://en.wikipedia.org/wiki/Photorefractive_keratectomy
> They can erase and alter people's memory
https://www.ncbi.nlm.nih.gov/pubmed/14572521, plus lots of pharmacological stuff in spook-land which is well-attested but rarely peer-reviewed.
> They can scan for problems using a handheld device.
http://edition.cnn.com/2017/01/26/health/ai-system-detects-s...
> We are nowhere near any of that.
In the case of your specific examples, we are. It's early days and unevenly distributed, but actually we are getting there.
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https://en.wikipedia.org/wiki/Photorefractive_keratectomy
> They can erase and alter people's memory
https://www.ncbi.nlm.nih.gov/pubmed/14572521, plus lots of pharmacological stuff in spook-land which is well-attested but rarely peer-reviewed.
> They can scan for problems using a handheld device.
http://edition.cnn.com/2017/01/26/health/ai-system-detects-s...
> We are nowhere near any of that.
In the case of your specific examples, we are. It's early days and unevenly distributed, but actually we are getting there.