I think this is the answer. I started using vi 33 years ago and initially learned just what I needed to know. As time went on I learned more commands. If I w

I think this is the answer. I started using vi 33 years ago and initially learned just what I needed to know. As time went on I learned more commands. If I wanted to erase a word in a sentence, which had seven letters, initially I might type x eight times (erase the word and a space). Then as I learned more vi I might type 7x. As I learned more vi I might type dw. You can get a lot of navigation and editing done just knowing a few commands in vi. If you use it a lot, you can learn more commands and have an easier time. About 7-8 years ago the standard IDE for my programming niche changed, and I had to learn a new IDE and what I knew of the old IDE I have almost never used since. The vi stuff I learned 30 years ago I am still using.