Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pretentious and didactic

Yet another end of the millenium apocalyptic novel which is characterized by excessive didactic science explanations and 2-dimensional characters. The book also includes a pompous afterword section - an exercise in over-justification. I have to admit an interesting scientific premise is developed (for a SF novel) but spoilt in the execution by rather clumsy writing. Perhaps the author should stick to the non-fiction science genre.