ActM didn't have chips three months ago. So comparison makes no sense to me as you are talking hypothetically with ifs and buts. Why focus on something which is common to all as a bad thing only for ActM. If ActM need x more power to maintain y of network same can be said for all miners. I will back off now as I can see where this is going and it's no benefit to me to get drawn in thanks.
I have made no comparisons, that's probably why you are confused. You might consider studying math, the basics of mining, or both.
The past rate of difficulty increase is factual. The future rate is an educated guess, you are correct, and in that sense a hypothetical. I have allowed for slowing rate of increase; in other words, fudged things in favor of Active Mining. If you know a way of predicting mining income without guessing the future network speed, i'm all ears.
If you do not understand why more chips are needed to mine the same number of coins as network speed grows, you may not be ready to participate in this thread.