National Academies:

New Heroes

John L Hennessy portrait by Christopher Michel

John Hennessy

Dr. John Hennessy is a computer scientist, engineer, and visionary whose influence has shaped both academia and the technology industry for decades. A pioneer in computer architecture, he co-developed the RISC processor design, an innovation that fundamentally transformed computing, making modern microprocessors more efficient and powerful. As the former president of Stanford University, the co-founder of the Knight-Hennessy Scholars Program, and the chairman of Alphabet, his leadership continues to bridge the worlds of education, research, and global technology.

I photographed Hennessy at Stanford’s Denning House on December 3, 2024. It was a moment of reconnection, our first meeting was nearly two decades earlier when he was Stanford’s president. Back then, he took me to the robotics lab, and we both lamented how slowly robotics had progressed. Now, as we spoke again, his curiosity remained undiminished, his reflections on the past sharp and unfiltered, his optimism about the future tempered but intact.

Hennessy carries himself with an unmistakable energy, his huge smile and engaging presence making it immediately clear why he has been such a transformative leader. He has the rare ability to make complex ideas feel tangible, whether discussing the evolution of microprocessors, the intersection of academia and industry, or the ethics of AI. His tenure at Stanford fostered an environment where interdisciplinary research flourished, helping shape the ecosystem that made Silicon Valley what it is today.

But his story does not end with academia. As chairman of Alphabet, he remains at the forefront of technological change, grappling with the ethical and societal challenges that come with advancing artificial intelligence and global computing infrastructures. His leadership continues to push the boundaries of what’s possible, balancing the relentless pace of innovation with a deep understanding of its broader implications.

From the corridors of Stanford to the boardrooms of the world’s most influential technology companies, Hennessy has built bridges, between disciplines, between generations, between vision and execution. To spend time with him is to be reminded that great leadership is not just about knowledge, but about the ability to inspire, to connect, and to see the throughlines between past achievements and the possibilities that lie ahead.


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