Almost everything on computers is perceptually slower than it was in 1983 (2017)
Said this already but worth repeating:<p>the best computer application I interacted with was an AS400 era tax filling system.<p>It was a superb tool in the prettiest meaning. It was a care free, lag free, pedagogy free thing. Fill out data as it comes (the only smart key you needed was tab and shift-tab), smarter than the average web app form validation checks and suggestions. Think instant Elm typecheck where you enjoy the computer assisting work.<p>I was in 4th year in college and blown away how this thing beat anything we'd see or studied in school yet it was antique pre-OO pre-UML (maybe an ancestor of modeling hygiene though). I wish I could have a talk with the team who wrote that.<p>Of course it was about to be replaced by a web2.0 variant which was a resource hog, required constant scrolling, didn't do half of the old work but was full colored css.