One problem with "improving the mind" in the sense of making it more
efficient, bigger, and faster is debugging: as Intel's experience should
have shown us, the faster you make the chip, the faster it produces
volumes of wrong answers if there is a flaw.
Therefore, at least as important as intelligence increase is debugging.
I.e., philosophy and epistemology. Let us not only strive for more
answers, but for correct ones. Capability without control is like a
rocket-propelled car without a steering wheel.