Scholar pretendus has all sorts of mathematical difficulites.
Zechariah mentions two approximately 70-year periods, starting and ending in different years, which he claims are both identical and both 70 and 90 years long. He has yet to explain how 70 = 90, or how periods with different start and end dates can be the same.
Jeremiah and 2 Chronicles, backed up by the Watchtower, both clearly indicate that the 70 years prophesied by Jeremiah end in 539 B.C., and scholar pretendus -- given new input from Mommy's Isaiah book -- now admits that this is so. But he also claims that this same period ends in 537 B.C. He has yet to explain how the same period can end in two different years. He also has failed to explain why a period starting in 609 B.C. and ending in 539 B.C. cannot be THE 70 years of Jeremiah, especially when it meets every biblical criterion.
It's no wonder this pretend scholar flunked out of a simple graduate program in religious studies. Note that "religious studies" is to a hard discipline like theology as "engineering science" is to engineering. They're dumbed-down versions of the real thing intended to give a survey rather than an in-depth education. Flunking out of such is like flunking out of basket-weaving.
AlanF