You keep on not reading - they were not on the exact same track.So on the one hand Air Traffic regulations say that planes following the same track closely should have 300 feet of vertical separation and planes crossing should have a minimum of 1,000 -2,000 feet of vertical separation.
And remember that your debunking argument is that its the differences in atmospherics that causes it. So you think that the atmospheric conditions are vastly different at 38,000 feet and only 300 feet apart section of the sky.
So on one hand you are trying to say one plane did this and another one didn’t because the atmospheric conditions were different at only 300feet apart and yet these chemtrails go from horizion to horizion and stay airborne for hours on end and slowly spread out and join others until there is a thin white blanket covering the sky. And they never hit a bit of sky that does not have the conditions needed to create them. I think my horizion to horizion is at least about 32 miles of ground track
