Author name: Shannon Garcia

sierra-made-the-games-of-my-childhood.-are-they-still-fun-to-play?

Sierra made the games of my childhood. Are they still fun to play?


Get ready for some nostalgia.

My Ars colleagues were kicking back at the Orbital HQ water cooler the other day, and—as gracefully aging gamers are wont to do—they began to reminisce about classic Sierra On-Line adventure games. I was a huge fan of these games in my youth, so I settled in for some hot buttered nostalgia.

Would we remember the limited-palette joys of early King’s Quest, Space Quest, or Quest for Glory titles? Would we branch out beyond games with “Quest” in their titles, seeking rarer fare like Freddy Pharkas: Frontier Pharmacist? What about the gothic stylings of The Colonel’s Bequest or the voodoo-curious Gabriel Knight?

Nope. The talk was of acorns. [Bleeping] acorns, in fact.

The scene in question came from King’s Quest III, where our hero Gwydion must acquire some exceptionally desiccated acorns to advance the plot. It sounds simple enough. As one walkthrough puts it, “Go east one screen and north one screen to the acorn tree. Try picking up acorns until you get some dry ones. Try various spots underneath the tree.” Easy! And clear!

Except it wasn’t either one because the game rather notoriously won’t always give you the acorns, even when you enter the right command. This led many gamers to believe they were in the wrong spot, when in reality, they just had to keep entering the “get acorns” command while moving pixel by pixel around the tree until the game finally supplied them. One of our staffers admitted to having purchased the King’s Quest III hint book solely because of this “puzzle.” (The hint book, which is now online, says that players should “move around” the particular oak tree in question because “you can only find the right kind of acorns in one spot.”)

This wasn’t quite the “fun” I had remembered from these games, but as I cast my mind back, I dimly recalled similar situations. Space Quest II: Vohaul’s Revenge had been my first Sierra title. After my brother and I spent weeks on the game only to die repeatedly in some pitch-dark tunnels, we implored my dad to call Sierra’s 1-900 pay hint line. He thought about it. I could see it pained him because he had never before (and never since!) called a 1-900 number. In this case, the call cost a piratical 75 cents for the first minute and 50 cents for each additional minute. After listening to us whine for several days straight, my dad decided that his sanity was worth the fee, and he called.

Like the acorn example above, we had known what to do—we had just not done it to the game’s rather exacting standards. The key was to use a glowing gem as a light source, which my brother and I had long understood. The problem was the text parser, which demanded that we “put gem in mouth” to use the gem’s light in the tunnels. There was no other place to put the gem, no other way to hold or attach it. (We tried them all.) No other attempt to use the light of this shining crystal, no matter how clear, well-intentioned, or succinctly expressed, would work. You put the gem in your mouth, or you died in the darkness.

Returning from my reveries to the conversation at hand, I caught Ars Senior Editor Lee Hutchinson’s cynical remark that these kinds of puzzles were “the only way to make 2–3 hours of ‘game’ last for months.” This seemed rather shocking, almost offensive. How could one say such a thing about the games that colored my memories of childhood?

So I decided to replay Space Quest II for the first time in 35 years in an attempt to defend my own past.

Big mistake.

Space Quest II screenshot.

We’re not on Endor anymore, Dorothy.

Play it again, Sam

In my memory, the Space Quest series was filled with sharply written humor, clever puzzles, and enchanting art. But when I fired up the original version of the game, I found that only one of these was true. The art, despite its blockiness and limited colors, remained charming.

As for the gameplay, the puzzles were not so much “clever” as “infuriating,” “obvious,” or (more often) “rather obscure.”

Finding the glowing gem discussed above requires you to swim into one small spot of a multi-screen river, with no indication in advance that anything of importance is in that exact location. Trying to “call” a hunter who has captured you does nothing… until you do it a second time. And the less said about trying to throw a puzzle at a Labian Terror Beast, typing out various word permutations while death bears down upon you, the better.

The whole game was also filled with far more no-warning insta-deaths than I had remembered. On the opening screen, for instance, after your janitorial space-broom floats off into the cosmic ether, you can walk your character right off the edge of the orbital space station he is cleaning. The game doesn’t stop you; indeed, it kills you and then mocks you for “an obvious lack of common sense.” It then calls you a “wing nut” with an “inability to sustain life.” Game over.

The game’s third screen, which features nothing more to do than simply walking around, will also kill you in at least two different ways. Walk into the room still wearing your spacesuit and your boss will come over and chew you out. Game over.

If you manage to avoid that fate by changing into your indoor uniform first, it’s comically easy to tap the wrong arrow key and fall off the room’s completely guardrail-free elevator platform. Game over.

Space Quest II screenshot.

Do NOT touch any part of this root monster.

Get used to it because the game will kill you in so, so many ways: touching any single pixel of a root monster whose branches form a difficult maze; walking into a giant mushroom; stepping over an invisible pit in the ground; getting shot by a guard who zips in on a hovercraft; drowning in an underwater tunnel; getting swiped at by some kind of giant ape; not putting the glowing gem in your mouth; falling into acid; and many more.

I used the word “insta-death” above, but the game is not even content with this. At one key point late in the game, a giant Aliens-style alien stalks the hallways, and if she finds you, she “kisses” you. But then she leaves! You are safe after all! Of course, if you have seen the films, you will recognize that you are not safe, but the game lets you go on for a bit before the alien’s baby inevitably bursts from your chest, killing you. Game over.

This is why the official hint book suggests that you “save your game a lot, especially when it seems that you’re entering a dangerous area. That way, if you die, you don’t have to retrace your steps much.” Presumably, this was once considered entertaining.

When it comes to the humor, most of it is broad. (When you are told to “say the word,” you have to say “the word.”) Sometimes it is condescending. (“You quickly glance around the room to see if anyone saw you blow it.”) Or it might just be potty jokes. (Plungers, jock straps, toilet paper, alien bathrooms, and fouling one’s trousers all make appearances.)

My total gameplay time: a few hours.

“By Grabthar’s hammer!” I thought. “Lee was right!”

When I admitted this to him, Lee told me that he had actually spent time learning to speedrun the Space Quest games during the pandemic. “According to my notes, a clean run of SQ2 in ‘fast’ mode—assuming good typing skills—takes about 20 minutes straight-up,” he said. Yikes.

Space Quest II screenshot.

What a fiendish plot!

And yet

The past was a different time. Computer memory was small, graphics capabilities were low, and computer games had emerged from the “let them live just long enough to encourage spending another quarter” arcade model. Mouse adoption took a while; text parsers made sense even though they created plenty of frustration. So yes—some of these games were a few hours of gameplay stretched out with insta-death, obscure puzzles, and the sheer amount of time it took just to walk across the game’s various screens. (Seriously, “walking around” took a ridiculous amount of the game’s playtime, especially when a puzzle made you backtrack three screens, type some command, and then return.)

Space Quest II screenshot.

Let’s get off this rock.

Judged by current standards, the Sierra games are no longer what I would play for fun.

All the same, I loved them. They introduced me to the joy of exploring virtual worlds and to the power of evocative artwork. I went into space, into fairy tales, and into the past, and I did so while finding the games’ humor humorous and their plotlines compelling. (“An army of life insurance salesmen?” I thought at the time. “Hilarious and brilliant!”)

If the games can feel a bit arbitrary or vexing today, my child-self’s love of repetition was able to treat them as engaging challenges rather than “unfair” design.

Replaying Space Quest II, encountering the half-remembered jokes and visual designs, brought back these memories. The novelist Thomas Wolfe knew that you can’t go home again, and it was probably inevitable that the game would feel dated to me now. But playing it again did take me back to that time before the Internet, when not even hint lines, insta-death, and EGA graphics could dampen the wonder of the new worlds computers were capable of showing us.

Space Quest II screenshot.

Literal bathroom humor.

Space Quest II, along with several other Sierra titles, is freely and legally available online at sarien.net—though I found many, many glitches in the implementation. Windows users can buy the entire Space Quest collection through Steam or Good Old Games. There’s even a fan remake that runs on macOS, Windows, and Linux.

Photo of Nate Anderson

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RFK Jr’s plan to ban fluoride supplements will “hurt rural America,” dentists say

“Harmful”

While fluoride can kill bacteria, particularly at high levels, it’s used in oral health to inhibit the demineralization of tooth enamel while enhancing the remineralization of tooth surfaces, the ADA clarifies.

The best way to get fluoride is through drinking water, the ADA says. But supplements are a safe alternative if a child lives in an area without fluoridated water or if they mostly drink bottled water. Given rampant false and controversial claims about fluoride, more communities are now abandoning it. This week, Florida became the second state after Utah to ban fluoridation state-wide.

“Yes, use fluoride for your teeth, that’s fine,” Florida Gov. Ron DeSantis said at a news conference after signing the ban into law. “But forcing it in the water supply is basically forced medication on people. They don’t have a choice.”

ADA President Brett Kessler worries what children in places such as Utah and Florida will do to get adequate fluoride if the ban on supplements goes through. “In non-fluoridated communities, especially rural areas, fluoride supplements are the only chance for individuals to get the appropriate amount of fluoride to prevent tooth decay,” Kessler said in the statement. The move will be “particularly harmful to the most vulnerable and those who lack access to care,” he added.

While Makary said that the FDA will conduct a safety review of  fluoride supplements, the conclusion seems to be foregone, with the HHS writing that it is already “initiating action to remove” the products.

The ADA noted that places that have removed fluoride from drinking water, such as Calgary, Canada, and Juneau, Alaska, have seen increases in dental decay, particularly among children and low-income populations.

“Proposals like this stand to hurt rural America, not make them healthier,” Kessler said.

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spotify-caught-hosting-hundreds-of-fake-podcasts-that-advertise-selling-drugs

Spotify caught hosting hundreds of fake podcasts that advertise selling drugs

This week, Spotify rushed to remove hundreds of obviously fake podcasts found to be marketing prescription drugs in violation of Spotify’s policies and, likely, federal law.

On Thursday, Business Insider (BI) reported that Spotify removed 200 podcasts advertising the sale of opioids and other drugs, but that wasn’t the end of the scandal. Today, CNN revealed that it easily uncovered dozens more fake podcasts peddling drugs.

Some of the podcasts may have raised a red flag for a human moderator—with titles like “My Adderall Store” or “Xtrapharma.com” and episodes titled “Order Codeine Online Safe Pharmacy Louisiana” or “Order Xanax 2 mg Online Big Deal On Christmas Season,” CNN reported.

But Spotify’s auto-detection did not flag the fake podcasts for removal. Some of them remained up for months, CNN reported, which could create trouble for the music streamer at a time when the US government is cracking down on illegal drug sales online.

“Multiple teens have died of overdoses from pills bought online,” CNN noted, sparking backlash against tech companies. And Donald Trump’s aggressive tariffs were specifically raised to stop deadly drugs from bombarding the US, which the president declared a national emergency.

BI found that many podcast episodes featured a computerized voice and were under a minute long, while CNN noted some episodes were as short as 10 seconds. Some of them didn’t contain any audio at all, BI reported.

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the-empire-strikes-back-with-f-bombs:-ai-darth-vader-goes-rogue-with-profanity,-slurs

The empire strikes back with F-bombs: AI Darth Vader goes rogue with profanity, slurs

In that sense, the vulgar Vader situation creates a touchy dilemma for Epic Games and Disney, which likely invested substantially in this high-profile collaboration. While Epic acted swiftly in response, maintaining the feature while preventing further Jedi mind tricks from players presents ongoing technical challenges for interactive AI speech of any kind.

An AI language model like the one used for constructing responses for Vader (Google’s Gemini 2.0 Flash in this case, according to Epic) are fairly easy to trick with exploits like prompt injections and jailbreaks, and that has limited their usefulness in some applications. Imagine a truly ChatGPT-like Siri or Alexa, for example, that could be tricked into saying racist things on behalf of Apple or Amazon.

David Prowse as Darth Vader and Carrie Fisher as Princess Leia filming the original Star Wars. Credit: Sunset Boulevard/Corbis via Getty Images

Beyond language models, the AI voice technology behind the AI Darth Vader voice in Fortnite comes from ElevenLabs’ Flash v2.5 model, trained on examples of speech from James Earl Jones so it can synthesize new speech in the same style.

Previously, Lucasfilm worked with a Ukrainian startup we covered in 2022 on Obi-Wan Kenobi to recreate Darth Vader’s voice performance using a different AI voice model called Respeecher, which isn’t used in Fortnite.

According to Variety, Jones’ family supported the new Fortnite collaboration, stating: “James Earl felt that the voice of Darth Vader was inseparable from the story of Star Wars, and he always wanted fans of all ages to continue to experience it. We hope that this collaboration with Fortnite will allow both longtime fans of Darth Vader and newer generations to share in the enjoyment of this iconic character.”

This article was updated on May 16, 2025 at 4: 25 PM to include information about an email sent out from Epic Games to parents. This Article was updated again on May 17, 2025 at 10: 10 AM to correctly attribute ElevenLabs Flash v2.5 as the source of the Darth Vader audio model in Fortnite. The article previously incorrectly stated that Respeecher had been used for the game.

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google-to-give-app-devs-access-to-gemini-nano-for-on-device-ai

Google to give app devs access to Gemini Nano for on-device AI

The rapid expansion of generative AI has changed the way Google and other tech giants design products, but most of the AI features you’ve used are running on remote servers with a ton of processing power. Your phone has a lot less power, but Google appears poised to give developers some important new mobile AI tools. At I/O next week, Google will likely announce a new set of APIs to let developers leverage the capabilities of Gemini Nano for on-device AI.

Google has quietly published documentation on big new AI features for developers. According to Android Authority, an update to the ML Kit SDK will add API support for on-device generative AI features via Gemini Nano. It’s built on AI Core, similar to the experimental Edge AI SDK, but it plugs into an existing model with a set of predefined features that should be easy for developers to implement.

Google says ML Kit’s GenAI APIs will enable apps to do summarization, proofreading, rewriting, and image description without sending data to the cloud. However, Gemini Nano doesn’t have as much power as the cloud-based version, so expect some limitations. For example, Google notes that summaries can only have a maximum of three bullet points, and image descriptions will only be available in English. The quality of outputs could also vary based on the version of Gemini Nano on a phone. The standard version (Gemini Nano XS) is about 100MB in size, but Gemini Nano XXS as seen on the Pixel 9a is a quarter of the size. It’s text-only and has a much smaller context window.

Not all versions of Gemini Nano are created equal.

Credit: Ryan Whitwam

Not all versions of Gemini Nano are created equal. Credit: Ryan Whitwam

This move is good for Android in general because ML Kit works on devices outside Google’s Pixel line. While Pixel devices use Gemini Nano extensively, several other phones are already designed to run this model, including the OnePlus 13, Samsung Galaxy S25, and Xiaomi 15. As more phones add support for Google’s AI model, developers will be able to target those devices with generative AI features.

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renewable-power-reversing-china’s-emissions-growth

Renewable power reversing China’s emissions growth

China has been installing renewable energy at a spectacular rate, and now has more renewable capacity than the next 13 countries combined, and four times that of its closest competitor, the US. Yet, so far at least, that hasn’t been enough to offset the rise of fossil fuel use in that country. But a new analysis by the NGO Carbon Brief suggests things may be changing, as China’s emissions have now dropped over the past year, showing a one percent decline compared to the previous March. The decline is largely being led by the power sector, where growth in renewables has surged above rising demand.

This isn’t the first time that China’s emissions have gone down over the course of a year, but in all previous cases the cause was primarily economic—driven by things like the COVID pandemic or the 2008 housing crisis. The latest shift, however, was driven largely by the country’s energy sector, which saw a two percent decline in emissions over the past year.

Image of a graph, showing a general rise with small periods of decline. A slight decline has occurred over the last year.

China’s emissions have shown a slight decline over the last year, despite economic growth and rising demand for electricity. Credit: Carbon Brief

Carbon Brief put the report together using data from several official government sources, including the National Bureau of Statistics of China, National Energy Administration of China, and the China Electricity Council. Projections for future growth come from the China Wind Energy Association and the China Photovoltaic Industry Association.

The data indicate that the most recent monthly peak in emissions was March of 2024. Since then, total emissions have gone down by one percent—a change the report notes is small enough that it could easily reverse should conditions change. The report highlights, however, that the impact of renewables appears to be accelerating. The growth of clean power in the first quarter of 2025 was enough to drive a 1.6 percent drop compared to the same quarter a year before, outpacing the overall average of a one percent decline.

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new-twist-on-marshmallow-test-shows-power-of-a-promise

New twist on marshmallow test shows power of a promise

There have also been several studies examining the effects of social interdependence and similar social contexts on children’s ability to delay gratification, using variations of the marshmallow test paradigm. For instance, in 2020, a team of German researchers adapted the classic experimental setup using Oreos and vanilla cookies with German and Kenyan schoolchildren, respectively. If both children waited to eat their treat, they received a second cookie as a reward; if one did not wait, neither child received a second cookie. They found that the kids were more likely to delay gratification when they depended on each other, compared to the standard marshmallow test.

An online paradigm

Rebecca Koomen, a psychologist now at the University of Manchester, co-authored the 2020 study as well as this latest one, which sought to build on those findings. Koomen et al. structured their experiments similarly, this time recruiting 66 UK children, ages 5 to 6, as subjects. They focused on how promising a partner not to eat a favorite treat could inspire sufficient trust to delay gratification, compared to the social risk of one or both partners breaking that promise. Any parent could tell you that children of this age are really big on the importance of promises, and science largely concurs; a promise has been shown to enhance interdependent cooperation in this age group.

Koomen and her Manchester colleagues added an extra twist: They conducted their version of the marshmallow test online to test the effectiveness compared to lab-based versions of the experiment. (Prior results from similar online studies have been mixed.) “Given face-to-face testing restrictions during the COVID pandemic, this, to our knowledge, represents the first cooperative marshmallow study to be conducted online, thereby adding to the growing body of literature concerning the validity of remote testing methods,” they wrote.

The type of treat was chosen by each child’s parents, ensuring it was a favorite: chocolate, candy, biscuits, and marshmallows, mostly, although three kids loved potato chips, fruit, and nuts, respectively. Parents were asked to set up the experiment in a quiet room with minimal potential distractions, outfitted with a webcam to monitor the experiment. Each child was shown a video of a “confederate child” who either clearly promised not to eat the treat or more ambiguously suggested they might succumb and eat their treat. (The confederate child refrained from eating the treat in both conditions, although the participant child did not know that.)

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Spies hack high-value mail servers using an exploit from yesteryear

Threat actors, likely supported by the Russian government, hacked multiple high-value mail servers around the world by exploiting XSS vulnerabilities, a class of bug that was among the most commonly exploited in decades past.

XSS is short for cross-site scripting. Vulnerabilities result from programming errors found in webserver software that, when exploited, allow attackers to execute malicious code in the browsers of people visiting an affected website. XSS first got attention in 2005, with the creation of the Samy Worm, which knocked MySpace out of commission when it added more than one million MySpace friends to a user named Samy. XSS exploits abounded for the next decade and have gradually fizzled more recently, although this class of attacks continues now.

Just add JavaScript

On Thursday, security firm ESET reported that Sednit, a Kremlin-backed hacking group also tracked as APT28, Fancy Bear, Forest Blizzard, and Sofacy—gained access to high-value email accounts by exploiting XSS vulnerabilities in mail server software from four different makers. Those packages are: Roundcube, MDaemon, Horde, and Zimbra.

The hacks most recently targeted mail servers used by defense contractors in Bulgaria and Romania, some of which are producing Soviet-era weapons for use in Ukraine as it fends off an invasion from Russia. Governmental organizations in those countries were also targeted. Other targets have included governments in Africa, the European Union, and South America.

RoundPress, as ESET has named the operation, delivered XSS exploits through spearphishing emails. Hidden inside some of the HTML in the emails was an XSS exploit. In 2023, ESET observed Sednit exploiting CVE-2020-43770, a vulnerability that has since been patched in Roundcube. A year later, ESET watched Sednit exploit different XSS vulnerabilities in Horde, MDaemon, and Zimbra. One of the now-patched vulnerabilities, from MDaemon, was a zero-day at the time Sednit exploited it.

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openai-adds-gpt-4.1-to-chatgpt-amid-complaints-over-confusing-model-lineup

OpenAI adds GPT-4.1 to ChatGPT amid complaints over confusing model lineup

The release comes just two weeks after OpenAI made GPT-4 unavailable in ChatGPT on April 30. That earlier model, which launched in March 2023, once sparked widespread hype about AI capabilities. Compared to that hyperbolic launch, GPT-4.1’s rollout has been a fairly understated affair—probably because it’s tricky to convey the subtle differences between all of the available OpenAI models.

As if 4.1’s launch wasn’t confusing enough, the release also roughly coincides with OpenAI’s July 2025 deadline for retiring the GPT-4.5 Preview from the API, a model one AI expert called a “lemon.” Developers must migrate to other options, OpenAI says, although GPT-4.5 will remain available in ChatGPT for now.

A confusing addition to OpenAI’s model lineup

In February, OpenAI CEO Sam Altman acknowledged on X his company’s confusing AI model naming practices, writing, “We realize how complicated our model and product offerings have gotten.” He promised that a forthcoming “GPT-5” model would consolidate the o-series and GPT-series models into a unified branding structure. But the addition of GPT-4.1 to ChatGPT appears to contradict that simplification goal.

So, if you use ChatGPT, which model should you use? If you’re a developer using the models through the API, the consideration is more of a trade-off between capability, speed, and cost. But in ChatGPT, your choice might be limited more by personal taste in behavioral style and what you’d like to accomplish. Some of the “more capable” models have lower usage limits as well because they cost more for OpenAI to run.

For now, OpenAI is keeping GPT-4o as the default ChatGPT model, likely due to its general versatility, balance between speed and capability, and personable style (conditioned using reinforcement learning and a specialized system prompt). The simulated reasoning models like 03 and 04-mini-high are slower to execute but can consider analytical-style problems more systematically and perform comprehensive web research that sometimes feels genuinely useful when it surfaces relevant (non-confabulated) web links. Compared to those, OpenAI is largely positioning GPT-4.1 as a speedier AI model for coding assistance.

Just remember that all of the AI models are prone to confabulations, meaning that they tend to make up authoritative-sounding information when they encounter gaps in their trained “knowledge.” So you’ll need to double-check all of the outputs with other sources of information if you’re hoping to use these AI models to assist with an important task.

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google-introduces-advanced-protection-mode-for-its-most-at-risk-android-users

Google introduces Advanced Protection mode for its most at-risk Android users

Google is adding a new security setting to Android to provide an extra layer of resistance against attacks that infect devices, tap calls traveling through insecure carrier networks, and deliver scams through messaging services.

On Tuesday, the company unveiled the Advanced Protection mode, most of which will be rolled out in the upcoming release of Android 16. The setting comes as mercenary malware sold by NSO Group and a cottage industry of other exploit sellers continues to thrive. These players provide attacks-as-a-service through end-to-end platforms that exploit zero-day vulnerabilities on targeted devices, infect them with advanced spyware, and then capture contacts, message histories, locations, and other sensitive information. Over the past decade, phones running fully updated versions of Android and iOS have routinely been hacked through these services.

A core suite of enhanced security features

Advanced Protection is Google’s latest answer to this type of attack. By flipping a single button in device settings, users can enable a host of protections that can thwart some of the most common techniques used in sophisticated hacks. In some cases, the protections hamper performance and capabilities of the device, so Google is recommending the new mode mainly for journalists, elected officials, and other groups who are most often targeted or have the most to lose when infected.

“With the release of Android 16, users who choose to activate Advanced Protection will gain immediate access to a core suite of enhanced security features,” Google’s product manager for Android Security, Il-Sung Lee, wrote. “Additional Advanced Protection features like Intrusion Logging, USB protection, the option to disable auto-reconnect to insecure networks, and integration with Scam Detection for Phone by Google will become available later this year.”

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US and China pause tariffs for 90 days as Trump claims “historic trade win”

The deal announced today “did not address what would happen to low-value ‘de minimis’ ecommerce packages shipped from China to the US,” Reuters wrote. The US imposed 120 percent tariffs on those packages.

Treasury Secretary Scott Bessent said today that both governments want to avoid a severing of their economies but that the US still plans to impose tariffs on specific items that the White House wants to be produced in the US. Bessent said that “neither side wants a generalized decoupling. The US is going to do a strategic decoupling in terms of the items that we discovered during COVID were of national security interests, whether it’s semiconductors, medicine, steel, so we still have generalized tariffs on some of those, but both sides agree we do not want a generalized decoupling.”

The S&P 500 index was up about 2.6 percent today as of this writing, while the tech-focused NASDAQ Composite index had risen about 3.5 percent. Neither index has recovered to its record high after months of turmoil caused by Trump’s tariffs.

Reuters quoted Zhiwei Zhang, chief economist at Pinpoint Asset Management in Hong Kong, as saying that the 90-day deal was better than he expected. “I thought tariffs would be cut to somewhere around 50 percent,” Zhang said. “Obviously, this is very positive news for economies in both countries and for the global economy and makes investors much less concerned about the damage to global supply chains in the short term.”

In April, Trump raised tariffs on China while pausing tariff hikes on other countries for 90 days. Trump struck a trade deal with the UK last week, and talks with other countries are continuing.

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when-doctors-describe-your-brain-scan-as-a-“starry-sky,”-it’s-not-good

When doctors describe your brain scan as a “starry sky,” it’s not good

A starry sky can be stunning—even inside a hospital emergency room.

But instead of celestial bodies sparkling in the night, doctors in South Korea were gazing at bright brain lesions punctuating a magnetic resonance imaging (MRI) scan. The resulting pattern, called a “starry sky,” meant that their 57-year-old patient had a dangerous form of tuberculosis. The doctors report the case in this week’s issue of the New England Journal of Medicine.

The man had previously been treated for the infection in his lungs but came into the hospital’s emergency department after two weeks of unexplained headaches, neck pain, and tingling in his right hand. The MRI and Computed-Tomography (CT) scans clearly revealed the problem: rare nodules and lesions, called tuberculomas, speckling his lungs and central nervous system, including both cerebral hemispheres, the basal ganglia deep inside the brain, the cerebellum at the back of the brain, the brain stem, and the upper spinal cord.

Magnetic resonance imaging (MRI) of the head with gadolinium enhancement revealed numerous small, spherical, peripherally enhancing nodules in the cerebral hemispheres (Panels A and B), basal ganglia, cerebellum, and brain stem, as well as in the upper spinal cord with surrounding edema (Panel C). Credit: NEJM, 2025

The condition, called CNS tuberculoma, is a relatively rare manifestation of tuberculosis, which typically infects the lungs but can invade any part of the body. It’s unclear exactly how tuberculomas form, but evidence suggests that the bacteria that cause tuberculosis—Mycobacterium tuberculosis—can spread around the body via the blood. M. tuberculosis can get past the blood-brain barrier, possibly by hiding inside a type of white blood cell called a macrophage, in a “Trojan horse” mechanism or by breaking through the barrier. Tuberculomas are thought to form when bacteria and macrophages clump together into masses that may contain calcifications or cheese-like dead tissue called caseum.

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