> The question we have to answer though is why there's no middle ground. Again, this isn't what bimodal (or multimodal in general) means. There can be lots of

> The question we have to answer though is why there's no middle ground. Again, this isn't what bimodal (or multimodal in general) means. There can be lots of middle ground, it just doesn't end up with a single mode. To turn this around the other way, is there a reason that we would imagine a unimodal or even normal distribution for salaries here? If so, why?