I was working in a new book project on Saturday using old and highly optimized tools: LaTeX/TeX and Emacs. I am deeply appreciative of people who maintain and i

I was working in a new book project on Saturday using old and highly optimized tools: LaTeX/TeX and Emacs. I am deeply appreciative of people who maintain and improve these tools, they are not Dead projects by any means. I am against a world economy based on mandatory high growth. I am also against new tech, just because something is new. I make exceptions: deep learning applied to real world problems, better theories and implementation for security and privacy, and better online platforms for creating things; for example leanpub for writing and Google Colab for writing and sharing ideas and experiments in ML and DL. How often are we disappointed when new versions of software seem worse than previous versions?