Words fail to describe how skeptical I am of this, but let's focus on the particular point that the author is making. They correctly assert that if you look at

Words fail to describe how skeptical I am of this, but let's focus on the particular point that the author is making. They correctly assert that if you look at the totality of UFO sightings, then A -- "Honest mistakes: This includes misunderstandings of familiar phenomena, delusions and mental illness, and natural phenomena that we now poorly understand" -- is by far the dominant conclusion. If we just look at the hardest to explain ones, the author asserts, then that option disappears because that is what makes them tricky; we've ruled out (via multiple witnesses, or very reliable witnesses) that option. So let's just get to the nitty gritty -- what are some examples of the top 10 hardest to explain ones? I ask because I've never seen one that I would consider "hard to explain" in that sense.