The entire paragraph is about Lisp if you read carefully. The mother tongue of the author is irrelevant, he clearly thinks that Lisp is a superior language for

The entire paragraph is about Lisp if you read carefully. The mother tongue of the author is irrelevant, he clearly thinks that Lisp is a superior language for a possibly more intelligent coder: Emacs is developed by Lisp whose syntax is different from common programming languages. A developer who is curious enough to try Lisp is possibly more intelligent than average. Lisp is often the third language he/she learns (Java/C/C# is the first, a script language like Bash/Python/Perl/Ruby is the second).