A slim book with a simple, well-structured story and a satisfying ending. Its simplicity belied its profound impact as a comment on a futuristic world where we need to count what we carry and carry what we count. A comment on our current world where we cannot differentiate between needs and wants and are sucked into a whirlpool of materialism. After reading it I had the urge to space cleanse my home of extraneous 'stuff, and I did. I don't regard this a coincidence. Sometimes the profound comes in a small package. Why not five stars? Too short for me as a stand-alone, but would have been great as part of a collection.