I was a long time Emacs user, spent way too much of my life in ~/.emacs.d/init.el. I don't use it for anything other than magit any more. I just tried it again, first by upgrading my packages in package.el. Of course, everything is still locked up when I `package-menu-execute` to upgrade packages. I guess in a thousand years it will still be mostly single-threaded, with almost every action locking up the UI thread.