Good point. Though there is precedent of US military releasing clouds that contained bacteria and caused an outbreak in a city in California in the 50s or 60s. I suspect they possess such a vector now. Though this wasn't released from a plane but from trucks. So as you note it may not be associated with planes. Perhaps those clouds of "sanitizing spray" we saw early on in pandemic.
I think covid is real. It's an engineered virus. 20+ years of NIH funding for it. They wanted something scary but not uncontrollably lethal. It was all about insisting this be new if control.
Likely developed by the US/West. China researcher Zheng was in on it- not sure why China helped create the propaganda any it. My guess is they also wanted social control it offered.
The flu part was because it was very high FP PCR tests that they used / likely part of the propaganda.
I wonder if these things are associated with LiFi- essentially carrying information just like WiFi through visible spectrum. With this technology a movement towards ultraviolet (purple) increases information carrying capacity.
It's a preprint so I'd recommend archiving it before the peer review process finds a way to censor it.
Preprint article source: https://www.preprints.org/manuscript/202209.0430/v2
Src/https://twitter.com/DowdEdward/status/1630652821388541954