Really really interesting read - deeply of its own time but also because of its premise directly confronting and commenting on the fact that it is of its time.

I think the premise and its various logics are so compelling that they carry the book almost single handedly - the premise is let down by the lack of imagination with which it's author depicts human society, human nature, etc. Still it has that compelling quality of old science fiction of a fantastical thought experiment married to a pulp adventure story. The execution may not be perfect but it gets the brain working and it's short and sweet.