Or when human computers were replaced by electronic computers. In hindsight it was a good thing, many more people are working in computer related fields today.

Or when human computers were replaced by electronic computers. In hindsight it was a good thing, many more people are working in computer related fields today. https://www.history.com/news/human-computers-women-at-nasa https://www.history.com/news/human-computers-women-at-nasa