How our thoughts are formed?

[Angrboda]

For centuries now, polemicists hostile to Islam have claimed that the Quran is a fabrication. Scholar John Wansborough wrongly asserted, four decades ago, that there were no manuscripts of the Quran from its first century because it was only authored afterwards. In the 1970s, academics Patricia Crone and Michael Crooke argued that a Judaic sect morphed into what we now know as Islam around 690 CE — an extravagant claim they were to retract later. In the years before 9/11, when news of the Sana’a find first began circulating through the academic world, some predicted it would have the same kind of impact on Islam that Allied bombers had on Berlin.

Gerd-Rudiger Puin, among the first to access the original Sana’a manuscript, and the one who helped restore it, fuelled these claims. Puin took on the Quran head on in 1999, arguing that every fifth line was “just incomprehensible” because it was a collage of sources and texts, not a coherent whole. But, just like Spitaler’s cigar-tin treasure, Puin chose to keep the Sana’a manuscript hidden. He never published the microfilm images he shipped to Germany in 1997. It wasn’t until recently that the Corpus Coranicum succeeded in obtaining high-resolution images directly from Yemen authorities.

It is now clear that the deviations between the lower layer of the Sana’a Quran and the standard text we know today are minor. Behnam Sadeghi, the Stanford University scholar who, along with Uwe Bergmann, carried out the radiocarbon dating of the Sana’a manuscript, detected 32 instances of what he called minor discrepancies in the sections he studied — suffixes, prefixes and the like — and 25 more substantial ones, involving missing words. The changes, it is almost certain, were made on the orders of Uthman bin Affan, a contemporary of Muhammad, who became the third Caliph of the Islamic empire in 644CE. Uthman is said to have compiled the standard Quran to stamp out dissension within the community. Errors were reconciled and the Quran’s suras assembled by length rather than by the time of their revelation. Uthman sent out his version around 650CE, perhaps the time at which the upper layer of the Sana’a text was prepared.

Decades after earliest Quran was discovered, scholars to share full text of the Sana’a manuscript

I don't know whether you're right or wrong, Drich, but the sources you quote do not seem to support your claim that the Quran has been rewritten many times since the fall of the Ottoman Empire.