Wow, this is so incredibly ignorant I'm baffled.
>muh christianity
Wasn't for christians you wouldn't even know about Aristotle or Plato. Who do you think kept copying their texts and kept alive the knowlegde of ancient Greek while the barbarians turned the empire into a shithole? On a sidenote, the empire didn't fail because of christians, it was an economic collapse. Their economy was based on conquering more and more stuff, getting more and more free slave labour, but this requires ever faster expansion to provide resources for the expanding empire. Not sustainable. Keep also in mind that christian morality was actually an awesome innovation back then. The empire was deeply violent and inhumane, and I'm sure none of the hippies who go all "muh evil christians" would actually prefer the Roman Empire given an informed choice.
>greek science
The Greek idea of engineering relegated it as tricks to surprive the unwashed masses. They had steam technology, they used it to "magically" open the doors of the temple. It is recounted how the priests willingly did this as a scam to reinforce a dying faith they didn't buy into that much themselves. Thankfully the Romans were more practically minded.
>Hypatia
She was a marthyr of free thinkers, paganism and phylosophy, but she wasn't particularly good at it, just an idealist and good teacher with solid principles. A most respectable individual, but no particular academic merit.
>Calculus
LOL. They would need a lot of stuff to get there, from the number 0 to accepting the idea of irrational numbers. They didn't even have the so called "arab" (actually indian) numbers back then. Calculus is far beyond that.
>Hermetic knowledge
Some people won't like to hear it, since they buy into specific brands of Ye Seekreet Teechings, but there were many different traditions that more or less coexisted, none of them being the right one, from time to time stealing elements from one another. Christianity was one of them. 2000 years later, we scrape what we can. But it's as if someone, 2000 years from now, started talking about the Internet Age Tradition. There's no such thing, in fact there are a lot of competing ideas out there. This is actually a good comparison by the way, falling empires share some characteristics.
>this Greco-Roman imperial culture immediately recognized the genius of the Mayans in mathematics and astronomy
AHAHAHAHAHAHAHAH. The mayans were doing on a bigger scale what the Celts only did on a one actually proven occasions. The Romans would have seen them as deeply uncivilized, exploited them if they had been received as gods, while passively exterminating them with their diseases. Their numeration wasn't actually more advanced nor they had better instruments of measure compared to the Greeks, they just had a complex astronomical system. The assyrians did too, it was replaced by something simpler as culture evolved because it isn't practical. It's hilarious because that guy just implied the invetion of calculus before meeting the mayans. They would have been seen as weird savages by someone who mastered calculus. Sidenote: mayan engineering couldn't hold a candle to Roman, Egyptian or Greek. They were stuck at the terreplein, while the others already had actual mansonry, aqueducts, home heating and sewers (if you could afford it). This is also why some ancient mayan pyramids now are hills, while some of the egyptian ones, made of actual stone, last to this day almost intact. Romans came up with concrete. Mayans would have been yet another uncivilized province that should just beg the Empire to rule over them in exchange of their expertise.
>a kind of magical, psychopharmacolytic technology of thought and understanding was what was developed over the centuries
In Greek and Roman culture there already were cults based on hallucinogens, and others were used recreationally. Psylocibe is actually common in Italy, some legionaries used to get high on it. These cults were replace by other cults, as things change and there isn't one right and true system the world would naturally drift to as this guy seems to believe.