Authority and audacity aren't required to invent or borrow non-Egyptian characters and sounds, associate them with the English numeric system, and title the document, "Egyptian Counting." If you would like, I can show you that it can be done by doing so myself.
You're focused only on what's technically possible. Is it possible that some idiot besides Joseph Smith thought he could restore lost languages? Sure it is. But there is no evidence to support your claim that Phelps did this. Only Joseph Smith was the "Prophet Seer and Revelator."
Let's say white bird poop drops on your shoulder as a flock of birds fly overhead. Using your logic, it is
technically possible that some kid scraped some poo from his parrot's cage and threw it out the window, and it then landed on your shoulder. I have no doubt this is an argument you would fight for if you thought it had any apologetic value for the Church.
Do Phelps' letters to his wife somehow approximate Joseph Smith to them?
Depends what they contain. This is old ground that has been covered already.
Would written copies of Oliver Cowdery's Hebrew translation exercises somehow approximate Joseph Smith to them?
Depends, but probably not. There is nothing supernatural about studying a perfectly translatable language like Hebrew.
Would F.G. Williams' grocery list somehow approximate Joseph Smith to them?
Depends on what was on the list. Did it list a seer stone and Spanish Fly?
None of these documents of Joseph's scribes would be in the handwriting of Joseph Smith, but does that somehow approximate Joseph to them? Of course not. Why? Because in these cases we aren't unwittingly engaging in circular reasoning. We aren't presupposing, based on very weak circumstantial evidence, the very issue that is in question.
Here you go:
These are not in Smith's handwriting.
These did not originate with Smith. Why?
Because these are not in Smith's handwriting.
That is how circular reasoning works, so thanks for the illustration. It is as absurd as saying Bobby didn't kill his wife because his hired Hit Man did it. Phelps was a hired scribe and student of Joseph Smith. There is no evidence Phelps was in the business of restoring the Adamic language on his own. Otherwise why didn't he finish it without Smith?
We know, from the historical record, that Phelps had a personal interest in ancient languages.
So? That doesn't even begin to establish the illicit leap you're making.
He studied them while going to school.
And who taught him the "pure Adamic language"?
He took classes in them around the time of the KEP.
Again, who taught the class on the "pure Adamic language"?
He was particularly fascinated with the notion of a "pure language",
Yes, thanks to Joseph Smith, who was more obsessed with it than anyone.
and spoke in public about it more than anyone else in the church—at least to my knowledge.
To your knowledge? Don't you mean to say this is something you heard Will Schryver assert, and you're just taking it for granted? Either way, we know the whole "pure language" fiasco started with Smith (began in 1830 and he talked about it in more detail in 1832) and it apparently ended with him since no one, including Phelps, tried to finish where he left off.
And, of his own volition, he would pepper correspondences with samples of his knowledge of ancient languages
Which ones? CFR. The fact is Martin Harris also tried to share Joseph Smith's revelations with his wife. So what?
So, you are incorrect about him having no reason or inclination to produce such a text.
Howso? I am also interested in languages, I have studied languages, but I would never propose to restore lost languages unless I believed I had some prophetic ability to do so. Only Joseph Smith claimed that ability, and there are dozens of testimonies throughout history testifying to his alleged ability. No one to testify for "Phelps the divine translator."
On the other hand, there is nothing in the historical record where Joseph makes mention of, let alone expressed interest in working on, the Egyptian Counting document.
Do you really believe Adam didn't use numbers? Joseph Smith endeavored to restore the pure language, and that included numbers. He endeavored to form an Egyptian "Alphabet and Grammar." Now go provide us with a single "Alphabet and Grammar" of any language, that doesn't include numbers. And good luck!
Granted, on several occasions the historical record mentions that Joseph worked on the Egyptian Alphabet, and one of the EA’s is in his handwriting. However, this historical data doesn’t specify what Joseph’s role was in the EA’s production, how extensively he was involved, and most important, what the intent and purpose was for that document.
This is like saying, even though the historical record mentioned a flock of pigeons flying overhead, right at the time of being creamed with poo, the historical data doesn't specify the altitude nor the velocity of the birds. Nor does it specificy anything about their digestive states. Therefore, it is unreasonable to conclude the bird poop came from the flock above.
That is why, nearly two centuries later, we are still debating it. But, this is beside the point of the EC.
Wade, there has been no debate. For two centuries this was never an issue until this past fall Will Schryver made it up as a way to divert from his four year campaign of an upcoming refutation based on "hi-res" scans and textual criticism. That house of cards fell and he needed a backup theory to cover his arse. As far as I can tell, his only loyal followers are you and his sock puppet Nomad. He threw this silly idea out on the table on an online forum and then fled the scene like a scared little mouse once holes started being punched in it. He always does this, relying on his side kicks to stir a ruckus so he can then see if the critics will show our cards before he does another presentation. Seriously, he borrowed some ideas after reading Chris Smith's paper and listening to Sam Brown's presentation. But Brown, a faithful LDS scholar, does not support Will's theory. Brown actually agrees with "the critics" who maintain that Smith supervised the entire project.