In _Tech Agnostic: How Technology Became the World’s Most Powerful Religion, and Why It Desperately Needs a Reformation_, Greg Epstein argues that modern technology—especially Big Tech and AI—has overtaken traditional religion as the dominant force shaping how we live, think, and imagine the future. Drawing on his work as humanist chaplain at Harvard and MIT, he treats Silicon Valley not just as an industry but as a quasi‑religious system with its own “theology,” myths of progress, priesthood of founders and engineers, and promises of transcendence through data and algorithms. Epstein suggests that our near‑religious faith in platforms, metrics, and optimization has warped cultural values, encouraging us to quantify and monetize human experience while ignoring who benefits and who is harmed. Against this backdrop, Epstein proposes “tech agnosticism” as a way of life: a stance of principled doubt in which we neither worship technology nor reject it outright, but continually demand that it prove itself worthy of our trust. He weaves in humanist history and profiles of skeptics, whistleblowers, critics, and “heretics” who challenge dominant tech narratives, arguing that unbelief and dissent have always been crucial for keeping powerful institutions accountable. Rather than nostalgia for a pre‑digital past, the book calls for a kind of reformation of the “tech religion,” in which we redesign tools, incentives, and institutions so technology remains a tool in service of limited, mortal, relational human lives—never a substitute for meaning, community, or moral judgment.