I worked on a project where we were trying to modernize it with a fancy web UX. All the old timer users (people working at the insurance company for 20+ years)

I worked on a project where we were trying to modernize it with a fancy web UX. All the old timer users (people working at the insurance company for 20+ years) were used to working with the old version that was mainframe-based where they'd be opening flat files, and entering data, etc. they were really efficient at it. They knew all the keyboard shortcuts, etc. These weren't educated people, but by rote learned their jobs, well. They hated the new web-based, fancy UX that was built for them. So, I could see how the old-school accountants couple probably be pretty efficient at Lotus....