Human thought is undergoing fundamental transformation as technology simultaneously rewires our biological neural networks, cultural thinking patterns, and technological cognitive extensions. This "Three Streams" disruption represents both humanity's greatest challenge and unprecedented opportunity. Drawing on more than a decade of interdisciplinary research spanning fields as diverse as neuroscience, sociology, economics, archaeology, and technology development, Scannell reveals how accelerating change across all three cognitive dimensions is the root cause of modern crises–from political polarization to institutional failure. Yet, it also unlocks possible conscious cognitive evolution. This book argues that rather than accepting technological determinism, we can deliberately architect enhanced human thinking capacity and collective problem-solving.