In reply to Mick Ward:
> We'll have to agree to disagree. The most intelligent people I've encountered have been academics, IT people (especially), lawyers and management consultants. I'll give you just one example of their love of complexity:
>
> 'An organisation is a body of thought, thought by thinking thinkers.' A Nobel prize for tautology?
Were the above-mentioned people climbers?
> I agree - and there are increasing numbers of fundamentally unsafe climbers. Been to a climbing wall or low-grade sport crag recently?
I'm not sure I've ever met a climber who wasn't of average-or-above intelligence. I've seen a few stupid and unsafe things done, but generally by people I wouldn't call climbers, more people who occasionally climb or who happened to be climbing, or who happened to be at a climbing wall. I've never seen someone I'd call a climber do something fundamentally unsafe, unless of course you count getting on a bold route in the first place!
To answer the question we'd have to pin down the definition of "intelligence" anyhow, as well as the definition of a "better" or "worse" climber.
On a general level surely intelligence is just a measure of how "good" someone is at "stuff". IQ tests for instance are supposed to test a range of applicable skills such as numeracy, spatial awareness etc. I find it hard to believe that, on average, being "good" at "stuff" would not equate to being "good" at "climbing". I grant you there will be obvious exceptions where people have a very narrow form of intelligence (for instance extreme numeracy but with no spatial awareness). Your assertion that people who are generally good at the things measured by our casual concept of intelligence are generally lacking in other areas does not match my experience. In fact I find most of the good climbers I've met to be intelligent and sickeningly well-rounded over-achievers.
As for your last point, whether intelligence makes for the best climber, that was not the question asked, and again it's unanswerable, who is the best climber anyway? You could probably train an ape to redpoint, for example, but to me the best climber is probably the all-rounder, and they need the full gamut of skills that make climbing both so taxing and rewarding, and for me those skills are most often found where intelligence is also.