Any thoughts, sourcesor suggestions are welcome.
For Example: "Efficiency" depends on the sender (who writes) and recipient (who reads). But this is not the end. 1: HOW is something written (Hard to grasp?=> Flesh Analysis) 2: HOW is something written (10 px Font on mobil? => Typography) 3: HOW is something written (light white 20px Font on light grey background?? => Typography and Color Contrast) ... and so on for almost all topics. There are mostly more than one question to be answered ... for both views (sender and receiver).
But I'd look into the Twitter message length change over -
ie. https://medium.com/@kurtgessler/twitter-length-study-do-long...
> previous generation habits
This is harder to understand. I'd say the telephone was what was important directly pre-internet. Letter's were quaint. $ per message mattered. Latency was huge. It's pretty complex.