Dear @Aragorn I was under the impression you were a science guy and that I would be able to get you to agree to some degree with my stance. Since you haven’t walked back your statement of ethnic brains I am correct but to a much lesser extent than I expected.
From the beginning of thread you have engaged in moralistic fallacy (see your shrieking over physical correlates to iq) the moment you are presented with an uncomfortable scientific conclusion. I think you also called me a white supremacist when I made a list of known racial differences.
The thing is if You define yourself as a science guy and you are willing to ignore uncomfortable facts here, what else are you willing to let slide in your day to day work?
In the long run if the country demographics continue to change, science and innovation will not continue as it has in America. IQ of incoming averaging somewhere in 80s replacing a population that averages a triple digit IQ Means the end of many institutions in their current form as we know it.
Randomized controlled trials are necessary to judge the efficacy of obesity treatments, especially when crafting broad prescriptions for treatment. *Popular conceptions of weight-loss – even in the minds of medical professionals – are biased by odd examples of individuals with impressive short-term weight loss or rare individuals who managed to maintain a lowered weight for a long period of time. This is obviously improper, because it ignores the fact that these individuals are exceptional. The efficacy of any treatment, especially one that is to be recommended as a general prescription to treat any condition, needs to be subjected to clinical trials to judge their effect across the population to which the treatment is intended. This is what we do for new drugs.
However, even these have their limits. RCTs of lifestyle modifications are plagued by considerable non-compliance, even for those who remain in the study. This is especially acute towards the later parts of the longer trials. Some commenters correctly point out that this weakens any conclusions we can draw because we don’t know what the results would be if the subjects stuck to the trial.
However, I argue that this point, as technically true as it might be, is ultimately wholly academic. Patient non-compliance is an important part of the study, because these people aren’t going to live their entire lives in a laboratory under tightly controlled conditions; they are going to live their lives in the real-world feeding and exercising at their own accord. If dietary changes and exercise fail thanks to non-compliance – a point which is not at all clear at the moment, mind you – then they are useless as prescriptions to treat obesity en masse. It does no good to give advice that most people can’t stick to, assuming that non-compliance was the point of failure.