David Eagleman, "Circle of Friends"

After you die, you stop meeting new people.

(from Sum)

Another amazing and brief imagining of the afterlife, with a killer last line I didn't see coming and won't spoil except to say it's a thinker. In fact, Sum contains 41 different ideas on what the afterlife might be like, and all are so tiny they are bound to raise more questions than they can answer in a page or two. It's all bare bones when you leave the flesh behind.