(UTC) 
 : And I strongly agree. We "know" nothing, because pots regrettably cannot speak up to now. And let me cancel  
 one more sentence: "Critics of these efforts object to the potential circularity of the logical basis, since Kloekhorst and Kortlandt are both members of the Leiden School of Indo-European Linguistics, and often write mutually supportive works.", because writing mutually supportive works may, but must not necessarily imply circularity.   08:08, 19 November 2012