The World Without Us
Why we care more about future strangers than we think
Posted Sep 13, 2015
I stumbled across a very interesting argument the other day. It comes from the book Death and the Afterlife by Samuel Scheffler. The basic idea is captured quite nicely in the blurb on the Amazon page:
Suppose you knew that, though you yourself would live your life to its natural end, the earth and all its inhabitants would be destroyed thirty days after your death. To what extent would you remain committed to your current projects and plans? Would scientists still search for a cure for cancer? Would couples still want children?
In Death and the Afterlife, philosopher Samuel Scheffler poses this thought experiment in order to show that the continued life of the human race after our deaths - the "afterlife" of the title - matters to us to an astonishing and previously neglected degree. Indeed, Scheffler shows that, in certain important respects, the future existence of people who are as yet unborn matters more to us than our own continued existence and the continued existence of those we love. Without the expectation that humanity has a future, many of the things that now matter to us would cease to do so. By contrast, the prospect of our own deaths does little to undermine our confidence in the value of our activities. Despite the terror we may feel when contemplating our deaths, the prospect of humanity's imminent extinction would pose a far greater threat to our ability to lead lives of wholehearted engagement.
What are the implications? Here's Scheffler in the New York Times:
I think this shows that some widespread assumptions about human egoism are oversimplified at best. However self-interested or narcissistic we may be, our capacity to find purpose and value in our lives depends on what we expect to happen to others after our deaths. Even the egotistic tycoon who is devoted to his own glory might discover that his ambitions seemed pointless if humanity’s disappearance was imminent. Although some people can afford not to depend on the kindness of strangers, virtually everyone depends on the future existence of strangers...
There is also a lesson here for those who think that unless there is a personal afterlife, their lives lack any meaning or purpose. What is necessary to underwrite the perceived significance of what we do, it seems, is not a belief in the afterlife but rather a belief that humanity will survive, at least for a good long time.
Scheffler wraps up with some thoughts on our obligations to future generations.
...our descendants depend on us to make possible their existence and well-being. But we also depend on them and their existence if we are to lead flourishing lives ourselves. And so our reasons to overcome the threats to humanity’s survival do not derive solely from our obligations to our descendants. We have another reason to try to ensure a flourishing future for those who come after us: it is simply that, to an extent that we rarely recognize or acknowledge, they already matter so much to us.