Emacs, is obsolete but not for the reasons described in the article. I think the main problem is lack of smart IDE support. We can't easily define a language, a

Emacs, is obsolete but not for the reasons described in the article. I think the main problem is lack of smart IDE support. We can't easily define a language, a parser for it, reference resolve rules, analyze code, navigate reference, provide completion, etc. These features, not editors with a good text manipulation facilities get you the largest performance gain today. Take a look where sublime, or IntelliJ is heading to. IntelliJ, for example, has a toolkit for quickly defining support for languages: https://github.com/JetBrains/Grammar-Kit https://github.com/JetBrains/Grammar-Kit