> Directly select candidates at random for positions from an eligibility pool. Set and maintain the eligibility standard (such as an exam) by randomly selected oversight board to keep it updated and prevent the standard from being manipulated or gamed.

We don't want to discourage people from improving once they've met the bar. Learning a skill is often logarithmically distributed: it costs just as much to learn the first 50% as the next 25% and so on. At a minimum, to keep people cost-agnostic, we need

    d/dx Pr(selected | didn't learn x%) ~ log(x%)

or

    selection weight = [x log x - x + 1] * C

Note that x is on a scale from 1 to 0, where a 0 means there is nothing more you can improve at the skill, and a 1 means you need to improve at everything.