 Some have questioned whether the example is a case of genuine explanation. For instance, Räz 2013 points out that the honeycomb theorem is a two-dimensional theorem but that the real-life problem must address the three-dimensional structure of the honeycomb cells. In Räz 2017 several alternative scientific explanations of the structure of the honeycomb cells are discussed and used to evaluate the positions of Pincock (2012) and Baker (2015) on the kind of optimization result that is needed to explain the structure of the honeycomb cells (Pincock, contra Baker, claims that the optimality of the hexagonal shape among regular polygons is sufficient and there is no need to appeal to the general honeycomb conjecture). Wakil and Justus (2017, 917) criticize both the cicada example as well as the honeycomb example on the basis that both examples commit the optimality fallacy, namely ‘assuming a trait exists because it was selected for as a solution to a biological optimization problem.’