Nature vs. Nurture, the question at the core of behavioral sciences. Since intelligence is a mix of both, to the best of our understanding, a decline in IQ would have to mean we’re either passing on dumber genes or conditioning ourselves to be less intelligent. The reverse eugenics of human reproduction, both natural and subsidized, comes to mind in the era of the great society. Also, humans have recently outsourced much of their problem solving, memory, and social life to internet media in exchange for attention, time, and motor skills. So what is making us dumber? Are we raising dumber kids, producing dumber kids, or is it smart phones and public school? I usually don’t like to choose the all of the above cop out, but I cannot think of a better scenario in which it applies.