What I like about this author is that his books are not only excellent distractions but they make us ask questions. In this volume the hero made a choice for the future galactic civilization; because his judgment is reliably estimated this will be done according to its decision. Very uncomfortable he absolutely wants to understand what led him to make that choice. We find ourselves with it confrontrés various possibilities. I fear that like other SF writers Isaac Asimov is a visionary, afraid because our society has not had Treviso to guide his choice and we certainly have not made the right saw all the horrors that take place every day.