Xah Talk Show 2025-03-15 Ep627 emacs lisp, rot13 cipher, human words, music, art

• https://youtu.be/pAyk-uMyC00

• rot13-region
• symmetric cypher
• write command to rot13, current word, give it keybinding

• Emacs: rotate 13 cipher 📜
• ∑ Xah Lee Web 李杀网