Why did so much technology that was common in the Roman Empire did not make it into the medieval age?

Question

Examples like aquaducts, sewage, advanced architecture, etcetera

In: 121

Answer 1

A lot of long posts and I have not seen this referenced.

In addition to wealth and power, empires aggregate technology. Different cultures and societies each develop technology, that all is mixed when they are conquered.

So the largest empires have their choice of the best technologies, and they in turn are more likely to stand the test of time.