1. "Mohammedanism" is a slightly insulting and extremely outdated word for "Islam".
2. The "Roman Empires" of the Middle-Ages were the German Empire in Germany and the Byzantine Empire in Turkey. There were no "Romans".
3. There were no Muslims when Rome collapsed.
4. Rome wasn't "conquered by german barbarians". The West-Roman Empire was slowly collapsing due to lack of money and soldiers, only propped up by their german allies. And eventually the Germans had enough and took over in a coup. There was no conquest.
5. While the Arabs invented math, medicine and astronomy, Europe had numerology, astrology, and it was illegal to dissect a human corpse for study.
6. God can't make 2+2=5? That directly contradicts this "professor's" claim from the sentence before that God is free.
7. The idea of "laws of nature" was stolen by the Christians from the ancient greek concept of the "demiourgos". It was a crazy weirdo philosopher of the 14th century who revived that concept and fused it with Christianity.
8. God doesn't like tyranny? Read the First Commandment. Read up on why Lucifer is supposed to be an evil guy.
9. The modern world wasn't created in the Middle-Ages. It was the Renaissance who invented an occult, experimentalist version of Christianity by outright ignoring certain parts of it. And it was the Age of Enlightenment that created science and the modern world by taking the occult experimentalist Christianity of the Renaissance and cutting away the religious stuff.
If you want to look at what the Triune God produced, you may stop looking after the Middle-Ages, because everything after the Middle-Ages was created by elements beyond Christianity.
Holy fuck!!!!!
How does a professor of theology not know such things???????