Harpists spend 90 percent of their lives tuning their harps and 10 percent playing out of tune.
My computer just finished a second tuning run trying to optimize the search control parameters in my engine. This time it run for another 364 hours. I optimized the parameter set a bit, removed dead parameters (parameters belonging to a feature that the first run decided to disable) and added a few new ones. I also lowered the learning rate and modified the fitness function a bit.