Other responses were getting at the same ideas, but to put in concisely, an Emacs-based solution is: 1. keyboard driven 2. programmable 3. within an ecosyste

Other responses were getting at the same ideas, but to put in concisely, an Emacs-based solution is: 1. keyboard driven 2. programmable 3. within an ecosystem they are already within (lightweight, cross-platform, etc).