Mars as a refuge for humanity?

Consider the 2015 Newsweek article: “Star Wars’ Class Wars: Is Mars the Escape Hatch for the 1 Percent?” which claims “the red planet will likely only be for the rich, leaving the poor to suffer as earth’s environment collapses and conflict breaks out.” The only way you could believe this would be if you had no idea how thoroughly, incredibly, impossibly horrible Mars is. The average surface temperature is about -60°C. There’s no breathable air, but there are planetwide dust storms and a layer of toxic dust on the ground. Leaving a 2°C warmer Earth for Mars would be like leaving a messy room so you can live in a toxic waste dump.

The truth is that settling other worlds, in the sense of creating self-sustaining societies somewhere away from Earth, is not only quite unlikely anytime soon, it won’t deliver on the benefits touted by advocates. No vast riches, no new independent nations, no second home for humanity, not even a safety bunker for ultra elites.

Mars is nowhere near being a Plan B home for humanity anytime soon. Consider a worst-case climate scenario. The oceans have swollen ten meters higher, drowning New York City and Boston. Low-lying countries like Belgium and the Netherlands have been swallowed up whole. Heat waves make parts of the Southern Hemisphere uninhabitable as the planet is ravaged by floods, droughts, wildfires, and massive tropical cyclones. More than half of the world’s species die, coral reefs become bleached skeletons, freshwater sources from snowpack melt away or are fouled by rising seas, tropical diseases make their way into formerly temperate climates. Crops fail, people starve, and violence breaks out as over a billion climate refugees beat against the closed gates of the comparatively livable North.

That planet? Eden compared to Mars or the Moon. That Earth still has a breathable atmosphere, a magnetosphere to protect against radiation, and quite possibly still has McDonald’s breakfast. It’s not a world we would like to inhabit, but it is the one world in the solar system where you can run around naked for ten minutes and still be alive at the end.

Weinersmith, Kelly and Zach. A City on Mars: Can we Settle Space, Should we Settle Space, and have we Really Thought this Through? Penguin Random House, 2023. p. 2, 137-8

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US security assurances and nuclear weapon proliferation

Although France has historically been the only case of an insurance hedger opting for an independent deterrent, there is no guarantee it will be the last. Under President Trump’s leadership, significant doubts about America’s commitment to both Europe and East Asia led to growing concerns that the United States may not indefinitely remain a reliable and credible provider of extended deterrence—concerns that may remain long after the Trump administration as allies fear abandonment temptations could one day return to the White House. Burden-sharing disputes with NATO, Japan, and South Korea, and efforts to reduce America’s conventional footprint—a key indicator of its commitment to its allies—have led to questions in Germany about whether it requires a substitute to American extended deterrence, and similar discussions at least privately in Japan and South Korea among some domestic constituencies. Doubts about the reliability of America’s commitment to extended deterrence came to a boil under President Trump, who was at times perceived by allies such as South Korea as being willing to throw partners under the bus in pursuit of hisown policy objectives, such as a deal with North Korea’s Kim Jong Un. The experience has the potential to revive debates about independent deterrents in America’s long-time allies—and not just for instrumental reasons to elicit stronger reassurance from Washington to hedge against future incarnations of Trumpism that seeks to retrench America’s commitments back home.

Narang, Vipin. Seeking the Bomb: Strategies of Nuclear Proliferation. Princeton University Press, 2022. p. 298

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AI image generation and the credibility of photos

When AI-assisted photo manipulation is easy to do and hard to detect, the credibility of photos as evidence is diminished:

No one on Earth today has ever lived in a world where photographs were not the linchpin of social consensus — for as long as any of us has been here, photographs proved something happened. Consider all the ways in which the assumed veracity of a photograph has, previously, validated the truth of your experiences. The preexisting ding in the fender of your rental car. The leak in your ceiling. The arrival of a package. An actual, non-AI-generated cockroach in your takeout. When wildfires encroach upon your residential neighborhood, how do you communicate to friends and acquaintances the thickness of the smoke outside?

For the most part, the average image created by these AI tools will, in and of itself, be pretty harmless — an extra tree in a backdrop, an alligator in a pizzeria, a silly costume interposed over a cat. In aggregate, the deluge upends how we treat the concept of the photo entirely, and that in itself has tremendous repercussions. Consider, for instance, that the last decade has seen extraordinary social upheaval in the United States sparked by grainy videos of police brutality. Where the authorities obscured or concealed reality, these videos told the truth.

Perhaps we will see a backlash against the trend where every camera is also a computer that tweaks the image to ‘improve’ it. For example, there could be cameras that generate a hash from the unedited image and retains it, allowing any subsequent manipulation to be identified.

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The nuclear razor’s edge

I listened to the audiobook of Annie Jacobson’s Nuclear War. Having followed the subject and read a lot about it over the years, it nonetheless had a lot of new information inside of a compellingly presented, plausible, and chlling story.

Our whole world can end in a couple of hours; live life accordingly.

A broad-ranging talk with James Burke

As part of promoting a new Connections series on Curiosity Stream launching on Nov. 9, I got the chance to interview historian of science and technology, science communicator, and series host James Burke:

The more interview-intensive part begins at 3:10.

Satellite to satellite espionage and warfare

One inescapable but confounding element of trying to understand politics, international relations, and history up to the present day is that we don’t have access to what governments are doing in secret. We will need to re-write the history of these times decades from now, if circumstances and freedom of information laws permit historians to learn about the skullduggery of this era.

One potentially important example is happening now in space. Satellites have become crucial to everything from time synchronization for high precision activities to navigation and communication. They also can’t really be hidden. Perhaps there are satellites with optical stealth that are hardly or never visible, but even top secret spy satellites of the conventional design can have their orbits determined by civilians with stopwatches and binoculars.

That is why we know that Russia, among others, has been experimenting with satellites that approach others and can potentially disrupt or destroy them, or monitor their activity. An article on China’s program includes the intriguing phrasing: “non-cooperative robotic rendezvous” between spacecraft. Russia’s Cosmos 2542 is known to have approached USA 245: an American spy satellite believed to be one of the largest things in space.

One can only speculate on how such capabilities are influencing world politics and the unfolding of events.

Russia’s threshold for nuclear weapon use

Christopher Chivvis has an article in The Guardian about the danger of escalation to the use of nuclear weapons in the Ukraine crisis:

There are possible other paths toward further escalation, but they all eventually lead toward the nuclear threshold. Scores of war games carried out by the United States and its allies in the wake of Russia’s 2014 invasion of Ukraine make it clear that Putin would probably use a nuclear weapon if he concludes that his regime is threatened. It is hard to know exactly what turn of events would scare him enough to cross the nuclear threshold. Certainly a large Nato army entering Russian territory would be enough. But what if events in Ukraine loosened his grip on power at home? Indeed, achieving regime change in Russia indirectly by making Putin lose in Ukraine seems to be the logic behind some of those who are pushing for escalation today.

Moving across the nuclear threshold wouldn’t necessarily mean an immediate, full-force nuclear exchange – in other words, global thermonuclear war. But it would be an extremely dangerous, watershed event in world history.

The nuclear option that has been most frequently discussed in the past few days involves Russia using a small nuclear weapon (a “non-strategic nuclear weapon”) against a specific military target in Ukraine. Such a strike might have a military purpose, such as destroying an airfield or other military target, but it would mainly be aimed at demonstrating the will to use nuclear weapons, or “escalating to de-escalate”, and scaring the west into backing down.

Some analysts have questioned Russia’s ability to actually carry out such an operation, given its lack of practice. Unfortunately, this isn’t the only or even the most likely option available to the Kremlin. Based on war games I ran in the wake of Putin’s 2014 invasion, a more likely option would be a sudden nuclear test or a high-altitude nuclear detonation that damages the electrical grid over a major Ukrainian or even Nato city. Think of an explosion that makes the lights go out over Oslo.

Those war games indicated that the best US response to this kind of attack would be first to demonstrate US resolve with a response in kind, aimed at a target of similar value, followed by restraint and diplomatic efforts to de-escalate. In most games, Russia still responds with a second nuclear attack, but in the games that go “well”, the United States and Russia manage to de-escalate after that, although only in circumstances where both sides have clear political off-ramps and lines of communication between Moscow and Washington have remained open. In all the other games, the world is basically destroyed.

The more elevated the crisis, the greater the risks of misunderstandings and panicked decisions.

Putin’s war in Ukraine and nuclear energy

Theoretically, nuclear fission could play a big role in providing energy-rich lifestyles to people around the world without climate change.

At the same time, there are severe economic, social, and political headwinds to even maintaining existing capacity, much less building more.

Now, I fear that Russia’s invasion of Ukraine will add further causes for concern. Ukraine has four nuclear plants and 15 operating reactors — any of which could be damaged intentionally or unintentionally by combat, or which could experience a station blackout if the electricity grid goes down.

Russia’s actions are calling into question longstanding assumptions about global stability. If conflict will again be a feature of life in Europe, the Middle East, and Asia then potentially nuclear operators who already have public acceptance and cost competitiveness against other forms of energy generation as major concerns will have another reason to be wary of reactors. If an incident actually occurs at a Ukrainian nuclear facility, those public and elite concerns will be far more salient.