On the heels of Artemis II, our cultural obsession with space colonization continues, even as we face increasing global resource constraints and planetary health declines. Techno-optimists, including some of the wealthiest among us, dream of a future where we mine, travel to, and colonize other planets – all in the hopes of bypassing the problems we now face on Earth. But from the perspective of physics and ecology, how feasible is space colonization – and are these interplanetary ambitions blinding us to the miracle of the planetary spaceship we already inhabit?

In this episode, Nate welcomes back astrophysicist Tom Murphy and eco-interventionist DJ White, two longtime friends with deep roots in both space science and ecological reality, to examine the surging cultural fascination with space mining and off-world colonization. Drawing on decades of experience with NASA missions, lunar laser ranging, and biophysical research, Tom and DJ outline the economic impossibility of asteroid mining, the physiological brutality of long-duration spaceflight, and the absurdity underlying dreams of Mars colonization. Both guests also argue that space colonization has, at its core, become a convenient story that lets humanity off the hook for the damage being done here at home.

What if the real tragedy isn't that we can't reach the stars – it's that we've stopped paying attention to the planetary home we're already on? If the most brilliant minds drawn to space exploration redirected that energy toward the living systems collapsing around us right now, what might become possible? And what if we could recognize that the complexity, beauty, and intelligence we hope to discover elsewhere in the cosmos is, improbably and urgently, still here?

(Conversation recorded on February 24th, 2026)

About Tom Murphy:

Tom Murphy is a Professor Emeritus of the Department of Physics and the Department Astronomy and Astrophysics at the University of California San Diego. He retired in 2023 and moved to Washington State to focus more on the predicament of modernity and its ecological incompatibilities. He is the author of Energy and Human Ambitions on a Finite Planet, creator of the Metastatic Modernity video series, and continues to explore long-term human success through his Do the Math blog.

About DJ White:

DJ White is a co-founder of Greenpeace International and founder of EarthTrust. He has played a leading role in protecting dolphins, whales, sea turtles, and countless other marine animals, including successfully stopping a national dolphin drive kill and breaking the deadlock in capping the Kuwait oil fires. Additionally, he helped end the world's largest and most destructive global fishery – pelagic driftnetting – and created the lab which first demonstrated self-awareness in the universe outside the great apes.

Show Notes and More

Watch this video episode on YouTube

Want to learn the broad overview of The Great Simplification in 30 minutes? Watch our Animated Movie.

---

Support The Institute for the Study of Energy and Our Future

Join our Substack newsletter

Join our Hylo channel and connect with other listeners

Today's Frankly is the final installment in a three-part series on the role oil plays in modern civilization, prompted by the recent flow disruptions and geopolitical conflict surrounding the Strait of Hormuz. Nate frames the entire arc of this series through the concept of the carbon pulse: a one-time inheritance of ancient stored sunlight that humanity is burning through in a few hundred years. He highlights how modern economies, now roughly a thousand times larger than five centuries ago, are built on the assumption that the energy abundance at the top of this curve is permanent, when in reality it is not. Nate traces how money functions as a claim on physical work, not a substitute for it, and how the financial scaffolding that made shale oil viable depends on cheap capital that may not last. He connects this directly to what he calls energy blindness: the absence of biophysical reality from mainstream economic and political analysis.

Nate also draws a direct line between the energy crisis and the ecological crisis, framing them as two faces of the same predicament. The carbon pulse created both the unfolding ecological damage from burning too many fossil fuels, and the depletion crisis from drawing them down too fast. He outlines how forests, wildlife, and food systems all face increasing risk from both climate disruption and human desperation, and how geopolitical alliances are fracturing along lines of energy access rather than ideology. The episode closes with Nate's framing of the Great Simplification not as collapse, but as a potential reorientation, as well as an invitation to consider what actually produces human wellbeing: connection, purpose, community, and service. These are satisfactions that predate the carbon pulse, and do not require a barrel of oil.

What does it mean to build a civilization on a one-time energy inheritance, and then plan as though it will last? How might individuals and societies begin to reorient around what actually matters, before external circumstances force the issue? And as the carbon pulse peaks, who do we want to be on the way down?

(Recorded March 31st, 2025)

Show Notes and More

Watch this video episode on YouTube

Want to learn the broad overview of The Great Simplification in 30 minutes? Watch our Animated Movie.

---

Support The Institute for the Study of Energy and Our Future

Join our Substack newsletter

Join our Hylo channel and connect with other listeners

This week's Frankly is the second in a three-part series on the role oil plays in modern civilization, prompted by the recent flow disruptions and geopolitical conflict surrounding the Strait of Hormuz. This installment explores how modern society has been built on the assumption of cheap and abundant energy, and what happens when that assumption breaks down. Nate describes the ways our built systems, including food production, water treatment, manufacturing, and global trade, are calibrated to cheap energy inputs, and how processes that look economically efficient are often deeply inefficient in physical terms. He walks through the staggering degree to which the modern food system runs on fossil hydrocarbons, noting that roughly ten calories of fossil energy now go into every calorie of food on the plate, and that the Haber-Bosch process for synthetic fertilizer is what allows the planet to feed roughly half of its current population.

Nate then traces the accelerating depletion of conventional oil fields and the turn towards shale, which behaves as a fundamentally different resource than the conventional wells it has been masking. He considers the alternatives often proposed as replacements, highlighting why energy quality matters as much as energy quantity, and why solar and wind are better described as 'rebuildable' rather than 'renewable.' The episode closes with Jevons paradox and the historical pattern that humans have never actually transitioned off an energy source, only ever adding new ones on top of the old.

Why can't we simply swap in alternative technologies for fossil hydrocarbons? What does the turn toward shale mean for systems built around cheap and stable energy inputs? And how might oil supply disruptions reshape the things you do, consume, and think about in your daily life?

(Recorded March 31st, 2026)

Show Notes and More

Watch this video episode on YouTube

Want to learn the broad overview of The Great Simplification in 30 minutes? Watch our Animated Movie.

---

Support The Institute for the Study of Energy and Our Future

Join our Substack newsletter

Join our Hylo channel and connect with other listeners