This is exactly what I thought about when reading about the UFO sightings of the Roswell era. Less than 30 years after the biplane era, there were secret jet engine aircraft projects screaming around the Southwest desert at near Mach speeds and aircraft in production well over 500 mph. See one of those flying low almost directly toward you at night would look appear as if it is floating or barely drifting across the sky. If it then had a moderate course change left or right, it would appear to you to go from floating to extreme speeds with almost instant acceleration.
Right. I try to apply Occam's Razor in these scenarios. Either aliens fly around in the sky regularly enough that I've witnessed it multiple times, or there's something about perspective that I just don't fully understand (not meaning to throw shade on OP here).
