Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Flawed Logic

This is what happens when a biased biologist plays at historian. From the early pages Diamond is clear in his bias that his friends the New Guinea Highlanders are the most intelligent people on the planet. His reasoning that you take an average American and drop him into their hunter-gatherer society and he'd never survive. Though the exact same thing would happen if you took a NG highlander and dropped him in a Wal-Mart. His disregard for major western military victories are glossed over if mentioned at all. Some good stuff on the history of human crops, but useless beyond that. Read Carnage & Culture instead.