I am an engineer and have this same thought about the speed of work when drawings were done by hand and not on the computer and that was way less than 200 years ago.
Agreed. And cyclists should show the same respect for pedestrians that they expect from motorists. The ones who silently race by from behind are entitled assholes. And the ones who turn around to argue after being called out confirm that label. Former cyclist, walked my bike on sidewalks. 😇