Suppose I told you that I knew for a fact that the following statements were true:
- If you paint yourself a certain exact color between blue and green, it will reverse the force of gravity on you and cause you to fall upward.
- In the future, the sky will be filled by billions of floating black spheres. Each sphere will be larger than all the zeppelins that have ever existed put together. If you offer a sphere money, it will lower a male prostitute out of the sky on a bungee cord.
- Your grandchildren will think it is not just foolish, but evil, to put thieves in jail instead of spanking them.
You’d think I was crazy, right?
Now suppose it were the year 1901, and you had to choose between believing those statements I have just offered, and believing statements like the following:
- There is an absolute speed limit on how fast two objects can seem to be traveling relative to each other, which is exactly 670,616,629.2 miles per hour. If you hop on board a train going almost this fast and fire a gun out the window, the fundamental units of length change around, so it looks to you like the bullet is speeding ahead of you, but other people see something different. Oh, and time changes around too.
- In the future, there will be a superconnected global network of billions of adding machines, each one of which has more power than all pre-1901 adding machines put together. One of the primary uses of this network will be to transport moving pictures of lesbian sex by pretending they are made out of numbers.
- Your grandchildren will think it is not just foolish, but evil, to say that someone should not be President of the United States because she is black.
Based on a comment of Robin Hanson’s: “I wonder if one could describe in enough detail a fictional story of an alternative reality, a reality that our ancestors could not distinguish from the truth, in order to make it very clear how surprising the truth turned out to be.”1
A perhaps more salient point to make here is whether or not "qualified" includes opportunity cost. Take recent firefighting anti-discrimination court cases as an example. The legally approved way to conduct promotion testing is to pass over 90% of the people, and then randomly select from everyone who passed. The legally disapproved way is to test everyone, keep the scores as numbers, sort them, and promote from the top of the list going down.
If you imagine hiring or promotion decisions as binary- "are we going to promote Bob or not"- the first view of qualification makes some sense. Bob doesn't have anything obviously wrong with him, so sure, we could promote Bob. If you imagine hiring or promotion decisions as multi-optional- "which of these firefighters are we going to promote"- then you're making n choose 2 pairwise comparisons. Is Bob a better or worse candidate than Tom? Joe? Sue? Under the second view, there isn't really such a thing as 'qualified'; there's the 'best candidate' and the 'not best candidates.'
(This maps pretty clearly onto whether you view the promotion decision from the employee's point of view- did I get promoted or not- or the employer's point of view- who should I promote.)
No, quite wrong:
Now in addition, the court did say,
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