In reply to Don Boulder:
> (In reply to TRNovice) To a point, surely! The very fact that a climb has good protection, by its nature will make it an easier climb, hence why the truely hardest technical climbs have to be bolted.
I don't completely agreed. I think the single biggest factor is there are far greater numbers of top climbers climbing sport routes than there are ones climbing trad.
It's obvious the hardest routes will be bolted since they are the routes that the best climbers are trying to climb.
There are plenty of 'last great projects' out-there that would probably already have been climbed if bolted, but because they are on 'trad' cliffs they will be left for the next generation.
However, you are correct in that there is an indirect link between gear and difficulty. Any gear placement will also act as a handhold so the better the gear the more good holds there are likely to be. Therefore there is a slight trend that harder routes generally have less gear, but there are still lots of hard and relatively safe routes.