Will Hunt - Your simplistic vision of the future is missing a crucial point. Progress in difficulty is not linear over time. Progress is constrained within the bounds of physics. Take dynos as a simplified example. Over the years the distance people can dyno has increased, but the increase gets ever smaller as we approach the boundry of physical possibility. It is simplistic to assume that we will be making 10 metre dynos by 2100. The only way this can happen is for one of the immutables to change eg gravity, human physiology. Short of genetic/cybernetic engineering we will continue to make infinitesimal (BTW this means imeasurably tiny and tending toward zero, not infinate) gains in height, these will be ever more small and hard to acheive. The other major limiting factor then comes into play. When the difference between the worlds biggest dyno and the point beyond which any human can dyno gets so small it is measured in millimetres, how many of these are you likely to find on real rock? 99.9999...% of the dynos you find will be either side of this advancement range. It is a fact that the harder standards become the harder it becomes to find sufficiently hard lines on rock which aren't plain impossible. I'm not saying we have reached a point where standards can't improve (in fact I believe this point is unreachable), grades will increase because the closer to impossible you get the more extra difficulty will arise from a given unit of change in the perameters of the climb i.e. each extra millimeter dynoed is exponentially harder than the last. Basically it will be possible to squeeze quite a few grade rises out of small changes in the rock geometry. But crucially it will get to a point where it is nigh on impossible to find the next step forward on the random medium of rock. Ultimately the only way to make the next step forward will be on artificially produced problems, be they on rock or climbing wall.