Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It is dated and overly optimisic and simplistic

I did not like the book because I think that Mr. Drexler is a member of the 'grey goo' school of thought and as such is not giving proper consideration to thermodynamics. There is a second edition (2.0) that is available here: www wowio com /users/product.asp?BookId=503