Light and Silicon – ASML, TSMC and the Control of Microchips In the twenty-first century, power is not measured in currency. It is measured in nanometers. While the world debates money, markets, and geopolitics, a quieter reality shapes the future: the ability to manipulate light and silicon at atomic scale. Microchips do not merely power smartphones and data centers — they define the computational ceiling of nations. This book reveals the hidden architecture of modern power through a deep, first-principles analysis of two companies that sit at the most critical chokepoints of the semiconductor ecosystem: ASML — the only company capable of manufacturing extreme ultraviolet lithography systems, the machines that “print” transistors at near-atomic precision. - TSMC — the industrial force that transforms those microscopic patterns into functioning processors at planetary scale. From plasma hotter than the surface of the sun to fabrication plants costing tens of billions of dollars, Light and Silicon explains — step by step — how modern microchips are created, why shrinking transistors changes everything, and why these two firms have become structurally indispensable. This is not a book about technology trends. It is a book about industrial inevitability. Through rigorous analysis, it explores: • The physics behind semiconductor scaling • Why EUV lithography became unavoidable • The ecosystem that makes ASML impossible to replicate quickly • The foundry revolution that allowed TSMC to redefine manufacturing • Yield, precision, and execution as strategic weapons • Geopolitical exposure, export controls, and systemic fragilities • What it would truly take to build a company like ASML or TSMC Written with clarity but uncompromising depth, this book strips away marketing narratives and examines the structural realities beneath the semiconductor industry. Money is a claim. Microchips are capability. Whoever controls the tools that shape silicon controls the limits of computation — and therefore the limits of modern power.