LOL,
Nope you're not, believing G.Maxwell B.S. won't make you right.
You are up against very, very many people who have come to the same conclusion, including the authors of the BitFury white paper I cited, Peter Sztoric, smooth, myself, all of us together have 100+ years of programming experience. Dude you have an enormous ego considering you aren't even a programmer. Do you realize how much a prick you are? Those other guys wouldn't even bother replying to you, because they think you are so stupid.
You mistake trolling for correcting, and if you are blind to the truth that is your choice.
You who is not even a programmer, is going to correct all of us expert programmers.
Would not be the 1st Time, I corrected People who thought they knew everything and they were wrong.
Been doing that for ~80 years now. 
If you reread the earlier posts , I used the term accumulated difficulty.
I was also referring to the accumulated sum of the thresholds you call difficulty. That is irrelevant and that you don't understand why, goes directly to the heart of your slobbering Dunning-Kruger ignorance.
I already explained to you there is no computational cost. Adding thresholds which have no computation cost does not prevent the fast construction of a chain from any point in history. The coin age delays are entirely relative to what the attacker constructs on the chain of transactions.
You are making a fool of yourself and you are proudly being a real jerk to me wasting my time and thinking you know more than an expert programmer. And I done wasting my time on your ignorance. Just because you listened to some technobabble from your lesser programming friends, doesn't make you qualified to regurgitate their incorrect technical understanding in a debate with me.
You wasted several hours of my time today. This is very expensive. You are making me very angry.
PLEASE FUCKING STOP PRICK.