fipple, you need to look more carefully at the math for rayiner's hypothetical. When the top 25% advance, there is a difference between 10% of competitors being

fipple, you need to look more carefully at the math for rayiner's hypothetical. When the top 25% advance, there is a difference between 10% of competitors being given an unfair advantage over you, and 100% of competitors being given that advantage. This isn't to say that the former scenario is acceptable; I certainly do not appreciate the typical level of intellectual dishonesty surrounding endorsement of the status quo. But it is important to be precise regarding what we are talking about. You are making a mathematical error, and you need to correct it before this discussion can usefully proceed.