It should be obvious that the death of an individual human being isn't as bad as the death of all humankind. But that's only true if you accept the following premise laid out by Nassim Nicholas Taleb in his upcoming book, Skin in the Game:
I have a finite shelf life; humanity should have an infinite duration. Or I am renewable, not humanity or the ecosystem.
The quotation actually comes from a draft version of one chapter available here. The book is not yet out.
But what does this mean in practical terms? The simple answer is that human societies should not engage in activities which risk destroying all of humanity. Nuclear war comes to mind. And, most, if not all, people recognize that a nuclear war would not only result in unthinkably large immediate casualties, but also might threaten all life on Earth with a years-long nuclear winter.
