>> Or - worse - you'll see new information, but it'll be invisibly erroneous, because random GPs don't work to the standard that physicians administering examin

>> Or - worse - you'll see new information, but it'll be invisibly erroneous, because random GPs don't work to the standard that physicians administering examinations in clinical studies do. So you will take this into account and emphasize the more reliable types of tests, like blood tests. Or you'll find ways of learning which doctors who do the tests more accurately(or train doctors to do so) and which people are more consistent/reliable with their relationship with their docs. Or maybe you'll get a few hypotheses which are relatively likely and that would incentivize the researchers/google to do small clinical trials on them. It's worth a try at least.