This is your current version;
These pilots experienced a phenomenon captured visually and through their instruments that cannot be explained by current known physics or technology. Thus, there must be a possibility, even if extreme, that what they saw is of alien extra terrestrial origin.
Here is my preferred version:
These pilots experienced a phenomenon captured visually and through their instruments that, as far as they could tell, could not be explained by current known physics or technology. Thus, there must be a possibility, even if extreme, that what they saw is of alien extra terrestrial origin.
The fact of the matter is that pilots are not infallible when they attempt to interpret the information they receive through their instruments. Over and over again, pilots have interpreted ambiguous sensor data in a way that suggests craft capable of feats "that cannot be explained by current known physics or technology." And over and over again they have been wrong.
Take, for instance, the three videos released by the
To The Stars Academy, which appear to show craft executing manoeuvres which "cannot be explained by current known physics or technology." These three videos are the 'Tic Tac' video associated with the Nimitz sighting of 2004, the 'Gimbal' video which does not have a detailed provenance or date, and the 'Go Fast' video which does not have a detailed provenance or date. The guys over at Metabunk have examined these clips very closely, and have concluded that the 'Tic Tac' video and the 'Gimbal' video both show relatively distant conventional aircraft, and not nearby aircraft executing impossible manoeuvres. The 'Go Fast' clip, on the other hand, shows a bird flying at an intermediate altitude. In all three clips the effects of parallax seems to have been badly interpreted by either the pilots, or by the so-called experts that are supposed to have already examined these clips.
In short, it seems to be very easy to make mistakes when observing objects with unexpected characteristics, and very easy indeed to misinterpret the results of electronic sensors of various kinds. It is very difficult to be sure that, when a pilot says that he or she has seen something "that cannot be explained by current known physics or technology", they haven't made an observation error of some kind.