What? I'm just saying they haven't gotten there yet, so there's no use trying to evaluate whether Khan Academy will work on more subjective areas of learning.

What? I'm just saying they haven't gotten there yet, so there's no use trying to evaluate whether Khan Academy will work on more subjective areas of learning. I do see maths as being the easiest subject to use this method with and only time will tell if it can be extended successfully to more subjective subjects.