Recently, there has been a TV ad where a man wanders around a modern factory. There are no people, only robots. An incredible idea. And I'm sure it's true. After a few years I changed my direction and spent all my time in computer rooms and data entry areas. It didn't matter where one went the basics were always the same. Perhaps it was a harbinger of things to come, but of course, I didn't realize it at the time. Incidentally the cleanest factory I ever went into, was the one in Havant, Hampshire where they made Tampax. The noisiest factory I visited was the Rizla cigarette paper facility along the North Circular Road in London. Low ceilings and machines that actually screamed. It was dreadful. I'm glad I saw the way things were made, but I imagine it's a lot nicer now.
The picture here shows the condition in which most of my early factories are now surely in. Sad in a way. The end of an era, but better for the workers to just supervise robots and lasers.