They probably do clinical trials (or at least something like that) where they get baseline data from participants through other means.

I'm talking about sold units in the field.

	▲	themafia 5 hours ago \| parent [-]
		The same thing we always do. Pay some citizens of an African nation a pitiful wage to just make up annotations. Then you can incorporate this into a "health care product" and charge insurance companies insane rates on personal toilet cameras.