It's really remarkable just how durable the unix command line, emacs, vi have been. From monochrome terminals to the latest (Android at least) phones you can s

It's really remarkable just how durable the unix command line, emacs, vi have been. From monochrome terminals to the latest (Android at least) phones you can still pull up a terminal and edit like it's 1984. Even on Windows with Cygwin. If you had to bet on a technology still being there 40 years from now it would surely be that.