Old World Construction timeLIES

How do we stack up against the builders of the past? Were they really that much faster than we are in the modern era? Before power tools and the internal combustion engine? Or are the timelines we are given more like timelies? Judge for yourself..

Video used in intro:
https://www.youtube.com/watch?v=gDN4c2wnx3E&t=19s

Latent Lexicon video on photo manipulation:
https://www.youtube.com/watch?v=mQJaA-AVWlI