I think the part of your Java vs Scheme curve that is the most interesting is the beginning of the curve. That is the part that determines the adoption of the languages. If you were to accurately graph the curves of all languages together, I would posit that the language with the lowest integral for the first 10 features would be the language that gets the most adoption. If you want your language to have lots of users you need to focus on that section of the curve, and not the end of it.
Focus on the beginning of the curve!
I think the part of your Java vs Scheme curve that is the most interesting is the beginning of the curve. That is the part that determines the adoption of the languages. If you were to accurately graph the curves of all languages together, I would posit that the language with the lowest integral for the first 10 features would be the language that gets the most adoption. If you want your language to have lots of users you need to focus on that section of the curve, and not the end of it.