Intellectual pomposity?
Pot, kettle. Kettle, pot.
Let's examine the factors you would use for your estimate, shall we?
He uses factors such as the cloud ceiling,
The cloud ceiling only places an upper limit on the distance. I adressed that.
strength and direction of natural illumination,
Um, how can this tell you the distance to or size of an object? The difference in the angle of the sun at a distance of 1900 feet is nigh indetectible. If he can use this to determine distance, get him here for the challenge, he's about to be a millionaire.
So he knew the exact visibility imparted by the air on that particular day at the particular elevations from ground to 1900 feet, and estimated a distance based on that? And also ruled out any problems that might be related to his own vision? At DUSK?
and his natural ability to grossly judge distance using the focus of his yes.
An ability that has been evolutionarily shaped to dodge things like thrown rocks and leaping tigers, and loses accuracy significantly with distance.
When the object moves through the cloud ceiling he is able to further refine his estimates based on its apparent speed and time until it disappeared.
But without knowing the initial location, speed, size, and direction his estimates cannot be accurate with any degree of certainty. Even watching large planes (known-size objects, C-130s in my case) flying at much shorter distances (as much as a few hundred feet, they fly low into the airbase near here) it is very difficult to even determine the direction the plane is travelling with any accuracy, much less the speed. And that is with a known size object. Add in that this is a dusk (low-light) condition, and if he can do this we need to get him out of his mechanics job and into the Guiness book.
I dismiss this readily because it's blatant ignorance. It's apparant that this is your guesses, guesses which simply reinforce my view that this was an argument from ignorance. The factors you would use are what most people would, and these will not give you an accurate estimate of the distance or the size. Pilots and other professionals will be the first to tell you that determining size, speed, and direction of an object in the air is near impossible to do by eye, unless you havea nearby known size object that can be used as a comparison. Even then, you have to know exactly how close this known-size object is to make any sort of accurate determination.
And this is why I say it is immediately obvious his account is embellished. He had no accurate way of determining the size or distance to the object. He could not accurately identify it's speed or vectors. Yet he concludes it is an alien spacecraft? That is the influence of culture, and since the idea is in his head, his account immediately becomes suspect. His memory immediately becomes suspect, as its very likely that additional details will be added, coinciding with the alien spacecraft idea, as the story is remembered and retold.
Now, if you can quit throwing strawmen around everywhere:
If you saw something would you attempt to describe it, along with its position, or would you simply say "I saw something but beyond that I cannot possibly make any judgement." To provide such information is something that anybody would do, and should not be discouraged from doing by intellectual pomposity as we repeatedly see here.
and listen to actual arguments, we might get somewhere. OF course, without your strawman you couldn't act morally superior and pull off that smug, condescending tone...but oh well.
Saying "It's an alien spacecraft" does NOT provide any information as to what he saw. If he wanted to describe it's shape, color, and apparent size and psoition, great. However, he didn't. He said it was a craft. He could NOT have possibly known this from the information he had. He did not provide an accurate accoutning of what he saw, he proivided an embellished version of what he thought the object he saw was.
Why not back up your argument instead of saying "It's impossible" and expecting reasonable people to believe you.
If I were talking to a reasonable person, I'd be more concerned. This is simply more of your hypocrisy, though. You expect us to give credence to the "alien spacecraft" description of the mechanic, based only on his word with no evidence. Nice.