I have a question about spending favor to decrease skill learning time, and I've searched high and low but cannot find and answer. When you spend favor to speed up the learning of a skill, eventually you reach a point where your rock tells you that it's learning at maximum speed. My question is, how is it determined when a skill cannot be sped up any more? Is it a function of the time remaining in the learning process, or is it a certain percentage of the overall learning time?
Many thanks to anyone who can satisfy my curiosity!