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Submission + - Caffeine Has a Weird Effect on Your Brain While You're Asleep (sciencealert.com) 1

alternative_right writes: Caffeine was shown to increase brain signal complexity, and shift the brain closer to a state of 'criticality', in tests run by researchers from the University of Montreal in Canada. This criticality refers to the brain being balanced between structure and flexibility, thought to be the most efficient state for processing information, learning, and making decisions.

Submission + - What Will Universities Look Like Post-ChatGPT? (cameronharwick.com) 3

An anonymous reader writes: Lots of people are sounding the alarm on AI cheating in college.

Who could resist a tool that makes every assignment easier with seemingly no consequences? After spending the better part of the past two years grading AI-generated papers, Troy Jollimore, a poet, philosopher, and Cal State Chico ethics professor, has concerns. “Massive numbers of students are going to emerge from university with degrees, and into the workforce, who are essentially illiterate,” he said. “Both in the literal sense and in the sense of being historically illiterate and having no knowledge of their own culture, much less anyone else’s.”

Economist Cameron Harwick says it's on professors to respond, and it's going to look like relying more on tests and not on homework—which means a diploma will have to be less about intelligence and more about agency and discipline.

This approach significantly raises the stakes of tests. It violates a longstanding maxim in education, that successful teaching involves quick feedback: frequent, small assignments that help students gauge how they’re doing, graded, to give them a push to actually do it.... Unfortunately, this conventional wisdom is probably going to have to go. If AI makes some aspect of the classroom easier, something else has to get harder, or the university has no reason to exist.

The signal that a diploma sends can’t continue to be “I know things”. ChatGPT knows things. A diploma in the AI era will have to signal discipline and agency – things that AI, as yet, still lacks and can’t substitute for. Any student who makes it through such a class will have a credible signal that they can successfully avoid the temptation to slack, and that they have the self-control to execute on long-term plans.


Submission + - Volvo Debuts New IoT Seatbelt Design (caranddriver.com)

sinij writes:

According to Volvo, the onboard sensors can accurately detect a passenger's height, weight, body shape, and seating position. Based on real-time data, the belts optimize protection — increasing belt load for larger passengers or lowering it for smaller passengers. While the technology for customizing protection isn't new — Volvo's current belts already use three load-limiting profiles- the new belts increase that number to 11. The belts should also get safer over time, too, as they are equipped to receive over-the-air updates.

Downloading patches for your seat belts from China. What could possibly go wrong?

Submission + - For Algorithms, a Little Memory Outweighs a Lot of Time (quantamagazine.org)

mspohr writes: Time and memory (also called space) are the two most fundamental resources in computation: Every algorithm takes some time to run, and requires some space to store data while it’s running. Until now, the only known algorithms for accomplishing certain tasks required an amount of space roughly proportional to their runtime, and researchers had long assumed there’s no way to do better. Williams’ proof established a mathematical procedure for transforming any algorithm — no matter what it does — into a form that uses much less space.
One of the most important classes goes by the humble name “P.” Roughly speaking, it encompasses all problems that can be solved in a reasonable amount of time. An analogous complexity class for space is dubbed “PSPACE.”

The relationship between these two classes is one of the central questions of complexity theory. Every problem in P is also in PSPACE, because fast algorithms just don’t have enough time to fill up much space in a computer’s memory. If the reverse statement were also true, the two classes would be equivalent: Space and time would have comparable computational power. But complexity theorists suspect that PSPACE is a much larger class, containing many problems that aren’t in P. In other words, they believe that space is a far more powerful computational resource than time. This belief stems from the fact that algorithms can use the same small chunk of memory over and over, while time isn’t as forgiving — once it passes, you can’t get it back.

Submission + - Jared Isaacman pre-fired because of Musk connection (theregister.com)

Mirnotoriety writes: “Jared Isaacman, former NASA Administrator nominee, has shared how the US space agency might have looked under his leadership and blamed his connections with Elon Musk for the abrupt withdrawal of his nomination.”

"I don't like to play dumb ... I don't think that the timing was much of a coincidence ... There were other things going on on the same day."

‘There were indeed. Elon Musk's departure from the Department of Government Efficiency was also announced. "Some people had some axes to grind," said Isaacman, "and I was a good visible target."’

Submission + - Elon Musk Goes Nuclear (theatlantic.com) 4

sinij writes:

The world's richest man and the president of the United States are now openly fighting.

Trump threatened to cancel Space X government contracts and Musk accused Trump to be a frequent flyer to the Pedophile Island. This would be highly entertaining if not for the potential to wreck companies, ruin the economy, and sabotage legislative agenda.

Submission + - American Science & Surplus is fighting for its life

Tyler Too writes: One of the few major, independent science-surplus/DIY outlets left is American Science & Surplus. They've recently launched a GoFundMe campaign to ensure their survival. From Ars Technica:

Now, nearly 90 years after its launch selling "reject lenses" as American Lens & Photo, American Science & Surplus is facing an existential threat. The COVID-19 pandemic and increased costs hit the business hard, so the store has launched a GoFundMe campaign looking to raise $200,000 from customers and fans alike. What's happening in suburban Chicago is a microcosm of the challenges facing local retail, with big-box retailers and online behemoths overwhelming beloved local institutions. It's a story that has played out countless times in the last two-plus decades, and owner Pat Meyer is hoping this tale has a different ending.

Submission + - Missions to Mars with the Starship could only take three months (phys.org)

alternative_right writes: Many researchers consider the technology the only means to reduce transit times to the point that a mission will fall within NASA's career radiation limit of ~600 millisieverts (mSv). Kingdon's study challenges this prevailing assumption and advances the theory that a 90-day transfer can be achieved using conventional propulsion.

Submission + - Ukraine Drones Destroy Dozens of Russian Aircraft (foxnews.com)

schwit1 writes: The brazen Ukrainian blitz of Russian warplanes Sunday was 18 months in the making and the Pentagon was kept in the dark until it was over, sources told Fox News.

"Operation Spider's Web," a series of coordinated drone strikes penetrating deep into Russian territory, is believed to have taken out dozens of Russia's most powerful bomber jets and surveillance planes as they sat idle on five military airfields.

The stunning operation was personally overseen by President Volodymyr Zelensky, Ukraine’s security service (SBU) said.

Ukraine used small FPV drones hidden inside wooden cabins mounted on trucks. When the trucks reached their targets, the roofs opened by remote control, and the drones launched.

Submission + - Eleanor from Gone in 60 Seconds Can't Be Copyrighted (caranddriver.com)

sinij writes:

The ruling states that the Mustang doesn't pass tests that would qualify it as a character.

In the past, studio aggressively went after builders for any Mustang that even remotely approximated Eleanor, making it a hassle to restomod classic Mustangs.

Submission + - Is every memecoin just a scam? (theguardian.com) 5

mspohr writes: “Another way of defining a memecoin,” Lutz said, “is a cryptocurrency token that has an acknowledged inherent lack of value. The crypto world, outside of memecoins, is full of so many people who are trying to pitch you on tokens that are ‘actually really profound’ or ‘represent a stake’ in some kind of ‘useful network’, but are equally worthless. What makes memecoins different is that there’s none of that noise.”

In other words, all crypto is bullshit, but memecoins are consciously bullshit.

Most memecoins end up making money for the person who makes them as a “rug pull” or a “pump and dump”. The term “rug pull” was actually invented by the crypto community, and it works like this:

First, you mint a memecoin, and make sure that you and your mates own most of the liquidity pool (the total number of coins in circulation). The size of the liquidity pool – the amount of that memecoin that “exists” – is, like everything else in memecoins, a totally made-up number.

A “pump and dump” is pretty much the same thing, but with the slight caveat that you’re doing it with a coin that already exists, rather than creating your own. You buy a cheap coin, “pump” its value by hyping it so others invest, then “dump” all your stock, selling it off at a huge profit and causing everyone else to lose their money.

“It’s provably negative sum,” Gerard told me. “The only way you get money is by other people losing money.”

Right now, the Stable Bill and the Genius Bill, which reference Trump calling himself a “stable genius” in 2018, are trying to make their way through Congress. They pave the way for the US government to use stablecoins to pay everything from housing grants to social security payments. And Trump himself just so happens to have a stablecoin of his own – through the World Liberty Financial company – which would shoot up in value if these bills pass, earning his family trust potential billions.

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