That's a good observation. I've seen a couple of things offer successive "takes" of increasing complexity, and always thought it was an interesting idea. At a

That's a good observation. I've seen a couple of things offer successive "takes" of increasing complexity, and always thought it was an interesting idea. At a first guess, my bad reaction to the slider was based on an intuitive fear that the differences would be something more substantive than best-effort restatements of one idea.