Thank you! I'll definitely read these as soon as I have the time for a big project.
The only way I can see that !Muhammad could end up espousing a Karaite-ish Judaism is if he grew up more closely connected to his Jewish heritage. Which would mean that he needs to have some close connection to the Arabian Jewish tribes. Let's say !Muhammad's mother was the Jewish woman from the Banu Qaynuqa tribe and his father still dies of an illness before his birth. Would Muhammad still be raised by his paternal grandfather? How did intra-tribal family politics work?
Both Rabbinic and Karaite Judaism make the same claim: with the destruction of the Temples, God has "hidden His face" from Israel and will not provide true Prophecy until the Messiah comes (
Ezekiel 39:22-29;
Isaiah 29:9-14). But the Talmud has a large number of stories of rabbinic sages
meeting Elijah the Prophet, hearing the
bat kol (revelation not at the level of prophecy, literally: "daughter of the voice," understood to be akin to hearing the echo of God's revelation), and so on. Which would mean that Judaism at this time OTL wasn't completely adverse to people receiving revelation of some kind, even if it isn't necessarily Revelation.
I can imagine that Muhammad's initial revelation of the angel Jibreel telling him to "Read!" could be more or less the same as OTL, except instead of promulgating a new text he only "reads" the Tanakh. IIRC Islam already claims that Muhammad is
the "prophet like unto Moses" spoken about in Devarim. ITTL Muhammad could still claim to be that, provided he's the herald of that militarist Messiah which Judaism anticipated. And he would probably be rejected by some or all of the Geonim, according to a couple possible scenarios:
(1) Instead of completely throwing the Mishnah and Talmud out, !Muhammad picks and chooses between the rulings within the Talmud and says "this is right, this is not right. There's already a method in Rabbinic Judaism that he could do such a thing:
teiku, which means "we don't know the answer and Elijah the Prophet will answer them with Divine Inspiration." !Muhammad could take that role of reformist Rabbi and pare down the complexities of the Rabbinic Law. He would have the backing of the whole Rabbinic establishment after defeating them legally, and then (possibly) defeating the few schismatics who refused his rulings militarily.
This is the one I would prefer, but I don't know if !Muhammad would do it.
(2) !Muhammad takes a strong proto-Karaite stance against the whole Rabbinic establishment, but still manages to unite the Jewish and non-Jewish Arabian tribes under his antiestablishment Jewish banner. We avert the battles against the Jews of Medina by having Muhammad lead
them. The Geonic establishment is sidelined and eventually fades away or becomes the minority. ITTL Rabbinic Judaism is the minority and Muhammad-Karaite Judaism is the majority (the opposite from OTL).
Though this is the outcome I would rather not happen, I think this is the more likely one !Muhammad would take.
@GoulashComrade I want your opinion on that. Which do you think is the more likely direction !Muhammad would take? I don't think these are necessarily the only possible options, but I think they're the two most likely ones. And I have some ideas about how !Muhammad's succession could go - and I want to see a schism where the minority party (!Shia) is the more-Rabbinic one and the majority part (!Sunni) is the more-Karaite one - but we'd need to figure out how !Muhammad's life goes before we determine what happens after his life ends.