Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The author sounds like a confused teenager.

I am all about free thinking and going against established norms etc. and praising shamanism and womens' rights etc., and don't get me wrong McKenna has had some great quotes, but I just didn't enjoy reading this book at all. I think that he makes a good point that primates ate mushrooms and developed consciousness and language etc which is what we became, but I think instead of really making a convincing argument he just kind of rambles and jumps around from subject to subject, making the reader feel like he assumes they already agree with him and don't need to be convinced. Basically I just think his reasoning presentation was severly lacking and that he sounds like a teenager on acid.