I just read this post by Michael Anissimov on Accelerating Returns. Read it.
I don't fully agree with the way he kind of limits the effect of intelligence to "getting it right the first time". Getting it right eventually is not stupid either in my humble opinion.
On the contrary, I do love his conclusions.
But what we naively label “impossible” might be “easy” even to a mild
version of superintelligence, say a human being with an artificially
expanded neocortex.
[...]
It seems like only transhumanists are capable of really stepping
outside of that box of Homo sapiens and saying, “what if we were really
and truly fundamentally smarter?” If more people could do this, then
pursuing intelligence enhancement technology might become a national or
even global priority.
Think about it. If we become more intelligent then we will be able to solve almost all of our current problems.
Think about our ancestors before the wheel was invented. Or before Fire was tamed. Well from their point of view, we have solved already a good part of the issues they had in the old-days: eating, surviving as a species.
So what could we expect/hope to solve in the Future with greater intelligence? I guess we wouldn't mind curing cancer and aids for starters. Then what about solving world hunger and cleaning up the Planet. And what about curing the aging process...
That said, unlike Michael I wouldn't put too much emphasis on expanding our intelligence with neocortex implants. They sound spectacular but they also sound scary, and technically I suppose it could be harder to achieve these implants than to simply run that advanced intelligence on digital hardware. But that doesn't matter: it is only a question of timing, and technology progresses ever faster.
So, as a conclusion, should we work hard to build a greater intelligence? Yes we should, because it is the only way for us to get to the next stage, and leave our "homo sapiens sapiens" daily problems behind.
The good news is that we are already flying in that direction: exponentially accelerating progress is happening right now, as it always has, for our technologies. And ultimately our technology will outsmart our minds.