Your review of Jonathan Rottenberg’s The Depths: The Evolutionary Origins of the Depression Epidemic (New York: Basic Books, 2014) is rather disappointing, for it does not even mention the key words in the book’s subtitle (“Tidal Wave,” April 12, 2014). It mentions neither the depression epidemic nor its evolutionary origins. Now, Rottenberg suggests that setting unobtainable goals can trigger depression or low mood. In particular, depression may be the result of an overcommitment to goals that cannot be reached. Since the depression epidemic is now typical of the so-called west, does it have to do with its imminent economic downfall? Alternatively, does it have to do with the imminent downfall of our civilization as a whole due to rapid climate change? In both cases, the much-advertised goals cannot be reached. These would be explanations worth exploring, and not only in medical research. This is where the evolutionary origins of depression would be of greatest interest across the board, perhaps even in the so-called east.