From one of tech’s boldest thinkers and his longtime deputy and advisor, a sweeping indictment of Silicon Valley, showing how the West has slid into a culture of complacency, even as we enter a new era of mounting global threats.Silicon Valley has lost its way. From the founding of the American republic through much of the twentieth century, our most brilliant engineering minds collaborated with government to advance world-changing technologies. Their efforts secured the West’s dominant place in the geopolitical order. But that relationship has now eroded, with perilous repercussions.The focus of tech companies drifted to consumers, as they constructed elaborate online advertising and social media platforms. The market rewarded this shallow engagement with the potential of technology. The result? An entire generation of talented engineers and founders built photo-sharing apps and marketing algorithms, often unwittingly becoming vessels for the ambitions of others and depriving themselv