Can you see how this sort of thing, applied through a whole educational career, would tend to discourage learning and accomplishment?

As this sort of think becomes more common, it will be necessary to take into account the fact that others are also doing this when making these calculations.

Even if it's true (at least until transhumanism really gets going)

And once transhumanism gets going it will be the case that the best mathematicians will be the people who received intelligence upgrade "Euler" as children. My point is that if you're hoping for transhumanism because it will solve problems with inequality of ability, you should be careful what you wish for.