Muhammad's wife, Aisha, recalls: Narrated: Aisha
"The Prophet (SAW) heard a man (reciting Quran) in the Mosque, and he said, "May Allah bestow His Mercy upon him. No doubt, he made me remember such-and such Verses of such-and-such Sura which I dropped (from my memory)." [Sahih Bukhari, 3:823].
So our Debate Question is "Do instances of Quranic verses being abrogated arise because Allah wants to state something better, or do they instead arise because Muhammad forgot what he recited earlier?
Tellingly, the "Allah of Islam" in Quran 2:106 indicates that he causes "some communications from him to be forgotten." Muhammad himself could be forgetful: