“The Denial of Death essentially makes two points: 1.    Humans are unique in that we’re the only animals that can conceptualize and think about ourselves abstractly. Dogs don’t sit around and worry about their career. Cats don’t think about their past mistakes or wonder what would have happened if they’d done something differently. Monkeys don’t argue over future possibilities, just as fish don’t sit around wondering if other fish would like them more if they had longer fins. As humans, we’re blessed with the ability to imagine ourselves in hypothetical situations, to contemplate both the past and the future, to imagine other realities or situations where things might be different. And it’s because of this unique mental ability, Becker says, that we all, at some point, become aware of the inevitability of our own death. Because we’re able to conceptualize alternate versions of reality, we are also the only animal capable of imagining a reality without ourselves in it. This realization causes what Becker calls “death terror,” a deep existential anxiety that underlies everything we think or do. 2.   Becker’s second point starts with the premise that we essentially have two “selves.” The first self is the physical self—the one that eats, sleeps, snores, and poops. The second self is our conceptual self—our identity, or how we see ourselves.”