Summary of oded galor's the journey of humanity

Please note: This is a companion version & not the original book. Sample Book Insights: #1 The human brain evolved as a key driver of these cultural and technological advancements, which came to define humankind and set us apart from other species. #2 The human brain is extraordinary. It has tripled in size over the last six million years, and most of this transformation occurred 200,000 to 800,000 years ago, before the emergence of Homo sapiens. #3 The human brain evolved as a result of the exposure of our species to environmental challenges. The ecological hypothesis states that the human brain evolved as a result of the exposure of our species to environmental challenges. #4 The human brain and hand are two other distinguishing features of humans that evolved as a result of our history of innovation. Positive feedback loops of a similar nature have emerged throughout our history: environmental changes and technological innovations enabled population growth, which triggered the adaptation of humans to their changing habitat and tools.