I'm currently reading a surprisingly fascinating book:
Because Internet
Understanding the New Rules of Language
The discussion of language changes or its origins is something I have only been taking in small doses via YouTube. But now that I think about it, I thoroughly enjoyed two college classes that were language related. I took a phonetics class from the school of speech, pathology and audiology. (Shortly after this we had an interim minister at church, who was foreign {from the Phillipines??} I was noticing how he made the sounds of words so differently.) I hadn't been introduced to phonetics in high school and found it fascinating. The other class was about expanding your vocabulary by recognizing and understanding Latin and Greek root words. So, I guess I've been mildly interested in language for a while.
Anywho, back to the book I'm reading. The author, Gretchen McCulloch, is discussing a jargon dictionary from the 1970's and seems a little unsure about the upper case jargon given that today all uppercase is considered shouting. My guess would be that keyboards with lower case were not that common in the early 1980s—at least none of the ones I used had lower case.
This book is the closest I’ve come to reading a text book in many years and in spite of that, I’m thoroughly enjoying it.