Steve Hsu has suggested that we might be able to vastly increase human intelligence via genetic engineering, by finding the many small-effect alleles that affect IQ and engineering embryos with all-plus versions of those alleles – leading to people whose IQ would be 30 standard deviations higher than us yokels.
There are some possible problems with this scenario. The new & improved humans might not like us. They might be crazy: the risk for certain kinds of crazy increases with the number of plus alleles. Smarter than human, they might realize that life is not worth living, then rush out and do us all a favor.
It risks the death or domestication of the human race.
Now presumably intelligence in dogs is also highly polygenic. We could find those alleles and engineer super–dogs that were 30 std smarter than dogs today.
This might be a better idea. Dogs actually like us, which is not at all guaranteed for supermen.
Of course, they’d dominate internet poker, but that’s a a small price to pay.