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
I don't know what they know or don't know, and it's not clear to me that the presentation rather than the content of the research is the issue.
All of the discrimination lawsuits I've seen for the Chicago fire department, the courts have decided in favor of the city, but I doubt I've seen all of them. Which case are you thinking of?
I can't comment as to why others downvoted you; I did not. The primary thing I've noticed in discussing this issue with you is that you have several times declared a collection of claims false, which I would replace with putting forth specific contrasting claims. If you want to argue that promoting by lottery, after getting rid of some portion of the applicant pool by using a test, is legally disapproved, then make just that argument, and then we would discuss just that issue instead of having to figure out which issue we're discussing. If you want to argue that the burden of proof should be on the employer to validate any test which has different score or pass distributions for different groups, then say that clearly, and so on.
What?