It will lose money on the median student but what matters is mean performance (expectancy). That's not to say that I think this is a good idea, but there's ple

It will lose money on the median student but what matters is mean performance (expectancy). That's not to say that I think this is a good idea, but there's plenty of precedent (including VC) for investments where the median loses but the mean is positive, because the big wins cancel out the losses.