with scholars of the Celtic languages". The theory was criticised by Kim McCone in 2006, Graham Isaac in 2007, and Steve Hewitt in 2009. Isaac argues that the 20 points identified by Gensler are trivial, dependencies, or vacuous. Thus, he considers the theory to be not just unproven but also wrong. Instead, the similarities between Insular Celtic and Afro-Asiatic could have evolved independently. Notes References Sources