Flying Liars? If Commercial Pilots Can Miss Seeing Small Passenger Aircraft, How Come ...
they can spot these even smaller flying objects?
I suggest some of these pilots suffer from more than extreme visual acuity, like wild imaginations.
I was a technician with the Met Office years ago attached to one of their busier weather balloon launch sites. The radiosonde and battery weighed a pound (lb) or two and the balloons were a creamy white.
No pilot ever complained about these aerial objects and they flew tens of thousands of feet in height.