Martin E. P. Seligman and John Tierney:

What best distinguishes our species is an ability that scientists are just beginning to appreciate: We contemplate the future. Our singular foresight created civilization and sustains society. It usually lifts our spirits, but it’s also the source of most depression and anxiety, whether we’re evaluating our own lives or worrying about the nation. Other animals have springtime rituals for educating the young, but only we subject them to “commencement” speeches grandly informing them that today is the first day of the rest of their lives.

A more apt name for our species would be Homo prospectus, because we thrive by considering our prospects. The power of prospection is what makes us wise. Looking into the future, consciously and unconsciously, is a central function of our large brain, as psychologists and neuroscientists have discovered — rather belatedly, because for the past century most researchers have assumed that we’re prisoners of the past and the present.

I wonder what evidence exists for the claim that "What best distinguishes our species is an ability that scientists are just beginning to appreciate: We contemplate the future.” What if we are more clever and resourceful readers of the past than other species? What if it was our singular power of retrospection that "created civilization and sustains society”? After all, while it's true that we homo sapiens alone give commencement speeches, it’s also true that we homo sapiens alone build things like the Lincoln Memorial and inter our distinguished dead in places like Westminster Abbey. Why should the former count for more than the latter? 

In the preface to his translation of Thucydides (1629), Thomas Hobbes wrote that "the principal and proper work of history [is] to instruct and enable men, by the knowledge of actions past, to bear themselves prudently in the present and providently towards the future.” That is to say, validity of prospection depends upon accuracy of retrospection. Those who do not understand the past will not prepare themselves well for the future. Even if they read fizzy opinion pieces in the New York Times.