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Chatbots Make Terrible Doctors, New Study Finds
(www.404media.co)
This is a most excellent place for technology news and articles.
Or how bad something is. "I don't need a scientific study to tell me that looking at my phone before bed will make me sleep badly", but the studies actually show that the effect is statistically robust but small.
In the same way, studies like this can make the distinction between different levels of advice and warning.