The book provides a convincing story that answers important questions, but it doesn't cover the whole picture. It's an important part of understanding the fates of human societies.
This review acknowledges the book's strength in providing a convincing and important part of the answer to questions about the fates of human societies. However, it notes that the book doesn't cover the entire picture. The reviewer appreciates the book's insights but also recognizes its limitations, making it a valuable but not exhaustive resource.
Quick quotes
It is a convincing story, and an important part of the answer to Yali's question.
But it is not the whole answer.
The drawback to Guns, Germs, and Steel is that it is not the whole answer.