This is a brilliantly provocative and intense novel (and it has nothing to do with 'Science Fiction and Fantasy', by the by). It asks 'Why does misery produce misery?' and 'Is there really no such thing as progress?'. It offers no answers, but it might change the way you think about these questions.
The beauty of this book lies in the connections it makes across time, places and themes. It tells the stories of a variety of people, stories which overlap both physically and thematically. Like Don DeLillo's Underworld, it links ideas poetically and psychically - ie. in the realm of feeling and imagination. It is 'poetic history' that enables the reader to feel (rather than 'know') what is going on in the world.
There is a strong yearning - discernible in the strong undertow of unspoken thoughts - for a higher evaluation of human life as it is lived. In other words, to value the physical and emotional experience of being a human over and above the pursuit of wealth, 'progress', power. For these, Aldiss makes us feel, are all but idealisations of what we would like to be, but never will be. We will never be more than human.
For my money, this is one of the most significant 'British novels' published in the last decade. I can't understand why it isn't better known. Is it because people (inc. Amazon) still categorise Aldiss as a 'science fiction' writer...?