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.

Canada if the US collapses

The most disturbing thing about the January 6th riot and Trump coup attempt has been the reaction of American politicians. Despite being witnesses and targets of the attack, politics as usual has persisted, including Trump’s dominance of the Republican party.

This suggests a substantial danger that Americans in power will choose the victory of their tribe over the other above the endurance and peace of the union.

In today’s Globe and Mail, Thomas Homer-Dixon writes:

By 2025, American democracy could collapse, causing extreme domestic political instability, including widespread civil violence. By 2030, if not sooner, the country could be governed by a right-wing dictatorship.

During my international relations undergrad, profs often told us about how for most of Canadian history the biggest threat to Canada’s sovereignty has been invasion from the south. If mass political violence does erupt in the US — likely accompanied by a mass sense that the federal institutions of the supreme court, congress, and the presidency do not hold legitimate power over the whole US populace — it’s hard to believe that the US-Canada border would be respected in the uproar.

Of course it’s undiplomatic to talk in public about what will happen if your neighbour and strongest ally falls into civil war or ceases to be a democracy. Nonetheless, given the pathologies in American politics and society, it’s something Canadians must consider with growing seriousness and urgency.

The JWST is in orbit

In what may be the rocket-launched science story of the decade, the James Webb Space Telescope launched from the Guiana Space Centre in Kourou, French Guiana early Christmas morning Toronto time with me and many other science nerds watching the feed with mingled excitement and fear.

The process from here is remarkable both in terms of orbital trajectory and spacecraft deployment. This Scott Manley video shows the unusual position in space the JWST will occupy and the engineering and science reasons for it. This animation shows the planned deployment sequence for the spacecraft, which had to be folded to be housed in an aerodynamic fairing to push up through the Earth’s atmosphere.

Cohen historical theory

Avner Cohen provides a great summary of writing history (here under the particular limitations of studying Israel’s nuclear arsenal):

The narrative I offer, then, is by nature incomplete and interpretative. Like all narratives, it is not written from God’s-eye view; rather, it is a story told through incomplete human and archival sources.

Cohen, Avner. “Before the Beginning: The Early History of Israel’s Nuclear Project (1948–1954).” Israel Studies 3.1 (1998): 112-139.