One benefit is that you can operate “blindly”, without needing the hand-eye-coordination feedback loop. This tends to make frequent operations more automatic and decrease cognitive overhead.
Another benefit is that keyboard input is higher-bandwith than mouse operations. Imagine a mouse-only interface for everything you can do on the Linux command line, or all the operations you can do in Vim or Emacs (beyond actual text input).
Another benefit is that keyboard input is higher-bandwith than mouse operations. Imagine a mouse-only interface for everything you can do on the Linux command line, or all the operations you can do in Vim or Emacs (beyond actual text input).
It’s more powerful in the sense of “power user”.