Mephistopheles..heh... fucking brilliant!
Has that spannered you some? Made you rush for an exit click?
What is really gonna bake your noodle is whether:
1. Mephistopheles exercises his evil by condemning innocents to an eternity of suffering and pain by turning them into 40 something year olds.
2. it is a pact God made with the devil to checkout souls to the dark side ( as fodder for the devil's army of the undead) at the age of 40 as long as the latter keeps his hands off the human race before the aforementioned uncelebratory buggered time. I guess, God figured that there is no saving anyone with 40 years of earthly turpitude.
3. turning 40 itself is an expression of the highest evil. An expression of stooping to the lowest of all possible lows.
Of course, with the advent of time, since Devil plucked his first succulent-ripe forty year old, point two has come to resemble point three.
And I am starting to believe this shit. If I make this hypothesis palatable enough and jam it down the face of enough thirty something year olds, I might just incite mass hysteria. Yeow!!