『Let's Know Things』のカバーアート

Let's Know Things

Let's Know Things

著者： Colin Wright
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概要

 A calm, non-shouty, non-polemical, weekly news analysis podcast for folks of all stripes and leanings who want to know more about what's happening in the world around them. Hosted by analytic journalist Colin Wright since 2016.

letsknowthings.substack.comColin Wright 政治・政府
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  • Better Batteries

    Better Batteries
    2026/03/17
    This week we talk about BYD, Tesla, and the Blade Battery 2.0.We also discuss EVs, internal-combustion engines, and autonomous vehicles.Recommended Book: Blank Space by W. David MarxTranscriptPetroleum-powered vehicles, cars and trucks and SUVs of the kind that have become the standard since the mid-20th century, work by mixing fuel that you put in the tank when you fill up at the gas station with air, in the engine, and then creating a controlled explosion—in modern vehicles using what’s called a four-stroke combustion cycle of intake, compression, combustion, then exhaust—in order to move pistons which, in turn generate mechanical power by transferring that movement to the vehicle’s wheels.An electric vehicle, in contrast, functions by using electricity from a battery pack to power an electric motor. So rather than needing fuel to combust, which then moves pistons which then moves the wheels, EVs are a straighter-shot with less conversion of energy necessary, electricity powering the motor which powers the wheels.That simpler setup comes with many advantages, and that difference in the conversion of energy is a big one. Because most of the energy injected into the EV’s system is converted into mechanical movement for the wheels, this type of vehicle only loses about 11% of the energy you put into it to that conversion of electricity to mechanical energy process—around 31-35% is initially lost while charging, converting electricity to motion, and so on, but about 22% is recaptured by the vehicle’s brakes during operation, leading to that 11% average loss.A gas-powered vehicle, in contrast, because of the inefficiencies inherent in converting fuel to combustion to movement, loses somewhere between 75-84% of the energy you put into it at the gas station, much of that loss in the form of heat that is emitted as a result of that conversion process; this is an inevitable consequence of the thermodynamics of burning fuel to create motion, and one that means operating a gas-powered vehicle is inherently lossier, in the sense that you can’t help but lose the majority of what you put into it as waste, compared to an electric vehicle, which is less lossy to begin with, but even more efficient when you include that in-operation energy recovery.That baseline reality of energy usage means that modern electric vehicles will typically be cheaper to fuel, to power, because it requires less energy input to get the same amount of travel. This cost-benefit comparison shifts even further in favor of EVs when gas prices are high, though, and though currently the cost of EVs tend to be higher than gas-powered vehicles in most countries, EVs also offer substantially lower lifetime maintenance costs—an average of 40% lower than gas-powered vehicles, due largely to the dramatically reduced number of moving parts in EVs, and the lack of regular, recurring engine-related maintenance tasks, like oil changes and replacing spark plugs.Not even considering the externalities-related savings of owning and operating an EV, then, like the environmental costs of fuel emissions, such vehicles can save owners tens of thousands of dollars in costs over the span of their ownership—though gas-powered vehicles are still more popular in most markets in part because they’re just more common on car lots, their infrastructure—gas stations versus charging stations—are also more common, and because there are numerous convenience issues, like it being quite a bit faster to pump a tank full of gas than to charge EVs, which is more efficient, but also a piece-of-mind sort of benefit.What I’d like to talk about today are some recent innovations in the EV and especially EV-scale battery space, and what it might mean for this market in the coming years.—After a relatively boom-y period in which EV sales saw a significant uptick, that uptick the consequence of friendly policies and subsidies from successive federal administrations and the rapid-fire innovations arriving in each new generation of EV model being pumped out by US makers, especially Tesla, the US car industry has in recent years pulled back from electric vehicles substantially—the most recent evidence of this being Honda’s recent announcement that three EV models they were planning to manufacture in the US will no longer see production.This was mostly a money decision, the raw and partially manufactured components necessary for US-based car companies to produce EVs are now burdened with new, Trump-era tariffs, that make producing finished products of this kind in the US all but impossible; simply too expensive to make.This is also an acknowledgment, though, that Chinese EVs have just gotten so good and so inexpensive for what you get, that it’s simply not possible to compete, not within the current economic and regulatory climate, but also not in the immediate future, even lacking those tariffs, because of how much of a lead Chinese car companies have ...
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    16 分
  • 2026 Iran War

    2026 Iran War
    2026/03/10
    This week we talk about Khamenei, Trump, and Netanyahu.We also discuss Venezuela, Cuba, and cartels.Recommended Book: Plagues upon the Earth by Kyle HarperTranscriptAli Hosseini Khamenei was an opposition politician in the lead-up to the Iranian Revolution that, in 1979, resulted in the overthrow of the Shah—the country’s generally Western government-approved royal leader—and installed the Islamic Republic, an extremely conservative Shia government that took the reins of Iran following the Shah’s toppling.Khamenei was Iran’s third president, post-Shah, and he was president during the Iran-Iraq War from 1981-1989, during which the Supreme Leader of Iran, the head of the country, Ruhollah Khomeini sought the overthrow of then Iraqi leader Saddam Hussein. Khomeini died the same year the war ended, 1989, and Khamenei was elected to the role of Supreme Leader by the country’s Assembly of Experts, which is responsible for determining such roles.The new Supreme Leader Khamenei was reportedly initially concerned that he wasn’t suitable for the role, as his predecessor was a Grand Ayatollah of the faith, while he was just a mid-rank cleric, but the constitution of Iran was amended so that higher religious office was no longer required in a Supreme Leader, and in short order Khamenei moved to expound upon Iran’s non-military nuclear program, to expand the use and reach of the Islamic Revolutionary Guard Corps, in-country and throughout the region, and he doubled-down on supporting regional proxies like Hezbollah in Lebanon, the Houthis in Yemen, and Hamas in Gaza, incorporating them into the so-called Axis of Resistance that stands against Western interests in the region—the specifics of which have varied over the decades, but which currently includes the aforementioned Hezbollah and Houthis, alongside smaller groups in neighboring countries, like Shiite militias in Bahrain, and forces that operate in other regional spheres of influence, like North Korea, Venezuela, and at times, portions of the Syrian government.Khamenei also reinforced the Iranian government’s power over pretty much every aspect of state function, disempowering political opponents, cracking down on anyone who doesn’t toe a very conservative extremist line—women showing their hair in public, for instance, have been black-bagged and sometimes killed while in custody—and thoroughly entangled the functions of state with the Iranian military, consolidating essentially all power under his office, Supreme Leader, while violently cracking down on anyone who opposed his doing whatever he pleased, as was the case with a wave of late-2025, early 2026 protests across the country, during which Iranian government forces massacred civilians, killing somewhere between 3,000 and 35,000 people, depending on whose numbers you believe.What I’d like to talk about today is a new war with Iran, kicked off by attacks on the country from Israel and the United States that led with the killing of Khamenei and a bunch of his higher-up officers, how this conflict is spreading across the region and concerns about that spreading, and what might happen next.—On February 28, 2026, the US and Israel launched a wave of joint air attacks against Iran, hitting mostly military and government sites across the country. One of the targets was Khamenei’s compound, and his presence there, above-ground, which was unusual for him, as he spent most of his time deep underground in difficult-to-hit bunkers, alongside a bunch of government and military higher-ups, may have been the rationale for launching all of these attacks on that day, as the attackers were able to kill him and five other top-level Iranian leaders, who he was meeting with, at the same time.This wave of attacks followed the largest military buildup of US forces in the Middle East since the invasion of Iraq back in 2003, and while military and government targets were prioritized, that initial wave also demolished a lot of civilian structures, including schools, hospitals, and the Grand Bazaar in Tehran, leading to a whole lot of civilian casualties and fatalities, as well.In response, Iran launched hundreds of ballistic missiles and drones at Israel, and at US bases throughout the region—these bases located in otherwise uninvolved countries, including Qatar, Bahrain, the UAE, Kuwait, Iraq, Jordan, and Saudi Arabia. Iranian missiles and drones also hit non-military targets, and in some cases maybe accidentally hit civilian infrastructure, in Azerbaijan, and Oman, alongside a British military base on the island of Cyprus.The Iranian president apologized in early March for his country’s lashing out at pretty much everyone, saying that there were miscommunications within the Iranian military, and that Iran wouldn’t hit anyone else, including countries with US bases, so long as US attacks didn’t originate from those bases.Despite that apology, though, Iranian missiles and drones continued ...
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    17 分
  • Killer Robots and Mass Surveillance

    Killer Robots and Mass Surveillance
    2026/03/03
    This week we talk about Anthropic, the Department of Defense, and OpenAI.We also discuss red lines, contracts, and lethal autonomous systems.Recommended Book: Empire of AI by Karen HaoTranscriptLethal autonomous weapons, often called lethal autonomous systems, autonomous weapons systems, or just ‘killer robots,’ are military hardware that can operate independent of human control, searching for and engaging with targets based on their programming and thus not needing a human being to point it at things or pull the trigger.The specific nature and capabilities of these devices vary substantially from context to content, and even between scholars writing on the subject, but in general these are systems—be they aerial drones, heavy gun emplacements, some kind of mobile rocket launcher, or a human- or dog-shaped robot—that are capable of carrying out tasks and achieving goals without needing constant attention from a human operator.That’s a stark contrast with drones that require either a human controlled or what’s called a human-in-the-loop in order to make decisions. Some drones and other robots and weapons require full hands-on control, with a human steering them, pointing their weapons, and pulling the trigger, while others are semi-autonomous in that they can be told to patrol a given area and look for specific things, but then they reach out to a human-in-the-loop to make final decisions about whatever they want to do, including and especially weapon-related things; a human has to be the one to drop the bomb or fire the gun in most cases, today.Fully autonomous weapon systems, without a human in the loop, are far less common at this point, in part because it’s difficult to create a system so capable that it doesn’t require human intervention at times, but also because it’s truly dangerous to create such a device.Modern artificial intelligence systems are incredibly powerful, but they still make mistakes, and just as an LLM-based chatbot might muddle its words or add extra fingers to a made-up person in an image it generates, or a step further, might fabricate research referenced in a paper it produces, an AI-controlled weapon system might see targets where there are no targets, or might flag a friendly, someone on its side, or a peaceful, noncombatant human, as a target. And if there’s no human-in-the-loop to check the AI’s understanding and correct it, that could mean a lot of non-targets being treated like targets, their lives ended by killer robots that gun them down or launch a missile at their home.On a larger scale, AI systems controlling arrays of weapons, or even entire militaries, becoming strategic commanders, could wipe out all human life by sparking a nuclear war.A recent study conducted at King’s College London found that in simulated crises, across 21 scenarios, AI systems which thought they had control of nation-state-scale militaries opted for nuclear signaling, escalation, and tactical nuclear weapon use 95% of the time, never once across all simulations choosing to use one of the eight de-escalatory options that were made available to them.All of which suggests to the researchers behind this study that the norm, approaching the level of taboo, associated with nuclear weapons use globally since WWII, among humans at least, may not have carried over to these AI systems, and full-blown nuclear conflict may thus become more likely under AI-driven military conditions.What I’d like to talk about today is a recent confrontation between one AI company—Anthropic—and its client, the US Department of Defense, and the seeming implications of both this conflict, and what happened as a result.—In late-2024, the US Department of Defense—which by the way is still the official title, despite the President calling it the Department of War, since only Congress can change its name—the US DoD partnered with Anthropic to get a version of its Claude LLM-based AI model that could be used by the Pentagon.Anthropic worked with Palantir, which is a data-aggregation and surveillance company, basically, run by Peter Thiel and very favored by this administration, and Amazon Web Services, to make that Claude-for-the-US-military relationship happen, those interconnections allowing this version of the model to be used for classified missions.Anthropic received a $200 million contract with the Department of Defense in mid-2025, as did a slew of other US-based AI companies, including Google, xAI, and OpenAI. But while the Pentagon has been funding a bunch of US-based AI companies for this utility, only Claude was reportedly used during the early 2026 raid on Venezuela, during which now-former Venezuelan President Maduro was taken by US forces.Word on the street is that Claude is the only model that the Pentagon has found truly useful for these sorts of operations, though publicly they’re saying that investments in all of these models have borne fruit, at least to some degree.So ...
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    16 分
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