I don't know...don't really care...he/she makes sense & used logical/scientific arguments. I am not playing the "I see your scientist and raise you one "scientist" game...(or "Janes expert" or ???). Bring physics, optics & contrail facts not so-called "experts".
It would be interesting to see a comprehensive list of “experts” who say:
1. Missile
2. Contrail
I don’t have time to do it, but maybe “Unicorn” could do it. He/she/it appears to have a lot of free time.