The problem with you diagram is that real contrails rarely persist for more than about 15 or 20 minutes (on very rare occasions they may persist longer but the emphasis is on RARE). Generally you watch a plane producing a contrail and following it back with your eye that only a few miles back it is already breaking up and disappearing.
The key differences on Chemtrails are persistence (they linger and spread but do not dissipate as do normal contrails), and the altitude at which they are formed. Contrails, real ones, only form at high altitude and Chemtrails can be seen to form at altitudes well below where contrails form.
people have been aware of the regime that causes persistent contrails since WWII.
you guys have no evidence of chemtrails, at least no evidence with rock solid provenance.
you are unwilling to establish and execute a procedure to take direct samples of one of your "chemtrails", which should be duck souop seeing as how you're so sure you can tell a "chemtrail" from a contrail.
you make wild allegations based on your observations of aircraft flying over, when you dont have a clue as to the airplane's altitude, or the temperature or humidity at that altitude.
in other words, you will believe what you want to believe, and to hell with even the most basic, commonsense mathematics.
meanwhile, you try to pass yourself off as some kind of math whiz kid.