How is it a &quot;redefinition&quot; of best? What was the original definition? Unless you add some qualifier, &quot;best&quot; for a software project doesn&#x27;t have any kind of objective definition. For a company it might be &quot;most profitable&quot;, for a newbie it might be &quot;easiest to use&quot;, etc. There are a ton of criteria that can go into it. RMS helpfully explains in broad terms what in his opinion would constitute the &quot;best Emacs&quot;.