@Fedora Millionankles
the gospels are not signed docs...
this is a matter of scholarly controversy but nothing of substance hangs on it... and its not a lock as you pretend but also nobody cares man. remember in my first post I conceded john could be the source without being the author.... but its not a concession.. its common knowledge.
what we want to know is what is the date of the doc and was the author in a position to know the facts? thinking can go like this-- whoever wrote Luke for instance was probably a companion of Paul who traveled to Jerusalem where he was able to interview witnesses. but in every area where acts of the apostles for instance overlaps with known history it is accurate. nobody thinks the author of acts was a fraud.
but we do think there are older sources, written and verbal that some of the gospels were taken from. but scholars that hold this notion do not think that Christianity was lost or something... they think what Jesus taught and stood for more or less is what is in the gospels. the historicity of the crucifixion, his burial by Joseph of Arimathea the discovery of the empty tomb by a group of women etc are all thought to be accurate history. also the original disciples are genuinely thought by majority scholarship to have really believed what they wrote and died for it...even that Jesus rose from the dead despite every predisposition to the contrary.
none of these facts depend on traditional authorship so I am often surprised that people act like its some kind of gotcha.
much more interesting than this rabbit hole is does Christianity work? can it deliver what it says it can? can it reproduce sainthood from generation to generation reliably? are its maps accurate to what happens to human consciousness as a person grows and develops spiritually? are its teachings reliable to navigate specific stages of growth successfully?
the answer to these way more important questions is a resounding YES!!!! its not an easy task as any reliable tradition will tell you and it cannot be done by plebs who dont have it for real.
contrast that with any religion started by some pleb that cannot deliver on this very difficult line of results and the truth of Christianity becomes apparent in its ability to deliver enlightenment of a very specific kind diametrically at odds with say... eastern mysticism... something brand new even...
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@Fedora Millionankles
this is hard as I'm quite busy at the moment so forgive any misspellings. I often tell people that it would not matter if the whole thing were a myth... nearly nothing would change for me because the path works to bring a person into profound intimacy with god and whoever crafted it (if it turned out to be crafted) were masters of the spiritual life.