This weird number rhythm is the key to remembering anything

Meet the prime numbers that are the secret to memory.

“Uh 2, 3, 5, 7” sounds a bit like how a jazz band might start a really funky piece that’s gonna be hard to listen to, but neuroscientists and educators say it’s the secret to overcoming the brain’s natural habit of forgetting everything we want it to learn.

In this story, Mark Wales dives into the science of spaced repetition, a technique that uses weirdly timed reviews to hack your memory and keep knowledge locked in. Whether you’re learning a new language, prepping for a presentation, or trying to master that one guitar chord, this method might be your new best friend.

It’s counterintuitive, slightly annoying, and wildly effective. But the real magic? It works even if you’re kinda lazy about it.

Image of the day

Ireland paid artists to create art and turned a profit

Ireland paid 2,000 artists a salary and had an almost 40% ROI.

For three years, Ireland gave 2,000 artists a basic income, about $1,500 a month, no strings attached. Critics called it a taxpayer giveaway. But when the program ended, the data came in: for every euro invested, society got €1.39 back.

Paying painters, poets, and performers actually boosted the economy. In Erik Barnes’ story, we learn the pilot didn’t just keep creatives afloat; it cut social costs, increased working hours, and even inspired more public support for the arts. Now Ireland’s making it permanent, with plans to expand.

It’s a reminder that art isn’t just decoration, it’s infrastructure for imagination, and apparently, GDP.

Boomers are proving that manners can go out of fashion, too

Dropping in unannounced? That’s so last season.

Fashion, names, slang. Some things just go out of style. Sometimes they come back. Sometimes they vanish forever. Common courtesy feels evergreen, but Boomers are finding themselves increasingly out of sync with younger generations over the small stuff. And this latest clash suggests that what counts as “polite” might be just as trend-driven as what counts as rad hip with it cool.

Imagine this. You are on the couch, settled in for a quiet evening, when there’s a knock at the door. You open it to find a friend dropping by unannounced. No text. No warning. Just… vibes. If you’re delighted, odds are you’re a Boomer. For just about everyone else, it’s an intrusion at best.

As Mark Wales reports, this moment is just one example of a quiet generational shift. What used to feel thoughtful or even respectful now lands as awkward, stressful, or boundary-crossing. And the unplanned visit is only the beginning. Mark rounds up six everyday behaviors that went from polite to problematic when no one was looking.

NASA confirms there’s something new in Earth’s neighborhood, and it’s sticking around for a while

🎶 New moon, you saw me standing alone, without a dream in my heart, without a love of my own… 🎶*

Apologies to the werewolves this spooky season, but your lives are about to get complicated. NASA has confirmed that Earth’s been secretly sharing its orbit with another rock, one that’s been hiding out for sixty years.

In this story by Erik Barnes, we learn that astronomers using the Pan-STARRS telescope spotted a “quasi-moon” called 2025 PN7, quietly looping around our planet in a stretched-out orbit. Think of it as the Moon’s clingy little cousin: smaller, weirder, and not ready to move on.

Scientists estimate it’s only about the size of a small building, which means you can’t spot it with the naked eye, but it’s still big enough to make space nerds giddy. 2025 PN7l stick around until 2083, making it a long-term guest in our cosmic Airbnb.

* - [Editor’s note: It’s “Blue moon,” Greg. Come on.]

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