Believers and unbelievers please compare this UNGODLY lengthy period with God's revelation of the Ten Commandments and the Torah DIRECTLY to Moses in 40 days and nights. Already, one should be aware that something is wrong.
Revelations were written to the Jews bit by bit in span of
40 years max. One can theorize that Musa/Moses (pbuh) receive revelation gradually throughout 40 years span.
Or Moses receive revelations wholly in
40x3 = 120 days but decided to write those verses gradually within 40 years.
Now the problem is.. if Moses
memorized the whole revelations in 40 days. There shall
not be any 2nd period of 40 days to receive revelations. Nor there should be
any 3rd period of 40 days at all. This shows Moses could have not memorize all revelations in 40 days due to repeating cycle of period to learn about the revelations.
Which tells that even after the periods of 40 days, Moses still receive revelations and that is the reason he wrote the books gradually within 40 years span.