Tom Murphy

Tom Murphy is professor emeritus of Physics and Astronomy & Astrophysics at the University of California, San Diego, where he spent two decades studying astrophysics and leading a lunar laser-ranging experiment that tested General Relativity with one-millimeter range precision. Following his instincts to educate, Murphy is eager to get people thinking about the quantitatively convincing case that our pursuit of an ever-bigger scale of life faces gigantic challenges and carries significant risks, which he explores in his Do the Math blog and related writing.

Note from Tom: To learn more about my personal perspective and whether you should dismiss some of my views as alarmist, read my Chicken Little page.

In conversation: Dave Murphy and Tom Murphy – if modernity can’t last forever, what comes next?

If modernity cannot endure within planetary limits, what comes next? Dave Murphy and Tom Murphy debate the likelihood of collapse, the possibility of adaptation and what we owe each other in a time of ecological overshoot.

April 27, 2026

In conversation: Dave Murphy and Tom Murphy – can modernity survive planetary limits?

In a wide-ranging exchange, physicist Tom Murphy and energy scholar Dave Murphy explore the tension between optimism and planetary limits, debating whether modernity can endure or must give way to something entirely new.

April 23, 2026

The strange genius—and limits—of living beings

A reflection on animal behaviour, evolutionary feedback systems and why living beings can appear both extraordinarily intelligent and strangely “dumb” depending on context.

April 16, 2026

Public lecture

Dream Presentation

Humans only fool themselves to believe they can do any better than ecology. We can’t expect to invent substitutes via cognitive processes: it’s never worked that way, and our attempt is proving to be a colossal flop in a mere 10,000 years.

April 1, 2026

baby macaque

The Magic of Feedback

The entire Community of Life—humans included—were better off when shrouded in the mysterious magic of the living world: held in awe, humility, and respect. We came into being inside the feedback loop, and threaten to destroy much when presuming to extract ourselves from its magical protection.

March 25, 2026

Prescribed pile burning

Ecological Deviation Application

All we can do now is stop being dumb enough to think our brains are capable of outsmarting ecology, and aim for lifestyles that are less obviously catastrophic—relying heavily on proven examples from the distant past.

March 12, 2026

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