&quot;Best&quot; means &quot;most optimized for some utility function&quot;. It always requires the utility function to be defined, and there&#x27;s always an infinite array of conflicting utility functions that could be used -- that&#x27;s the nature of &quot;best&quot;.<p>Stallman is, quite properly, clearly addressing the relevant utility function. This may differ from your preferred utility function, but that doesn&#x27;t make RMS&#x27;s definition a &quot;redefinition of best&quot;.