Modelers will almost certainly not draw different patterns from the same data. To arrive at a different distribution, you'll need to infer that the domain (in this case the sample size) is too small to rule out piecewise or differential behavior, or that the data set is inconsequential to your object of study. Either way, the fact remains to a degree of accuracy clusters of thinking human beings can be modeled successfully and have been for decades.
Now the data itself--particularly the chosen input streams--can definitely be challenged. Though it's unlikely that three independent studies happened upon k-power polynomial relationships between different sets of variables on their own, they can differ wildly in their constants.
If that's the case, we're wasting a lot of money on pshrinks, term insurance, and advertising with absolutely zero discernible benefit.Well, you can put 'em in boxes and rely on trends, I suppose. Seen a lot of folks do some fascinating variations on that. None successfully, as I recall...
A physicist is generally a better working mathematician and statistician than an economist. We've had too few of those in the social sciences in recent decades.All things considered, though, I don't guess a Physicist playing around with the People thing is any worse than Economists trying to do that...
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