IQ is the most reliable and most valid measure of general intelligence we have been able to come up with. It is good enough for many clinical purposes, eg assessing brain damage, and also just so happens to correlate very strongly with just about every "life outcome" you can think of. Does it measure everything imaginable about human intelligence? No. But it measures what we actually know about very well. To call it completely meaningless is absurd.
The ability to do boring arbitrary tasks is much more strongly correlated with the measures that IQ proponents cite as proof it's a meaningful measure than with whatever they mean by intelligence.
We could get the same results by forcing people to complete white noise patterns and seeing how long it takes them to quit.
That's an interesting idea, and while I doubt that it is true it seems like something you could determine experimentally. Has anyone done that or are you just asserting it?
