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Mike Sowden

@mikeachim.bsky.social

Writer (on science, travel & curiosity), Yorkshireman, tedious enthusiast, professional overthinker, Megathreader. Now: Scotland. Writes Everything Is Amazing: https://everythingisamazing.substack.com/

created July 4, 2023

12,894 followers 1,207 following 980 posts

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Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

1/9/2025, 1:34:06 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Whattt. I was (/am) a huge fan of this blog. How did I miss this??? Thank you!

31/8/2025, 4:29:25 PM | 3 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

😂😂😂😬😬😬 Amazing. And so well-told.

31/8/2025, 4:09:47 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

OMG. 😅 I know how that feels, as I did exactly this with a Russell Hobbs electric kettle in an Airbnb I'd just arrived in, in Cadiz.

31/8/2025, 4:07:35 PM | 2 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

YIKES. 😬

31/8/2025, 3:39:25 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

😂😭

31/8/2025, 3:33:21 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Ha! I'm sure there's an unwritten Jeff Vandermeer novel where this happens.

31/8/2025, 3:31:11 PM | 5 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reposted

It’s 1775, & Swedish-German chemist Carl Wilhelm Scheele has made a discovery that will go on to delight, entertain and, um, kill a lot of people. Scheele is by any measure a remarkable scientist. A better world might celebrate Scheele’s legacy for what it was. Instead, it gently ridicules it. 1/

Stock photo of a cloud of green dye swirling upwards in water.
21/8/2025, 1:49:33 PM | 152 50 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reposted

I just wrote 14 ways the overcooked blancmange inside your skull is a lot more interesting than an AI chatbot - and if you like reminders about how absolutely *incredible* your brain is, I reckon you might enjoy it: everythingisamazing.substack.com/p/14-ways-yo... Ta.

22/8/2025, 7:13:11 PM | 76 22 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Please tell me something amazingly but also (in retrospect) entertainingly idiotic that you or someone you know once did. Thx.

31/8/2025, 3:22:59 PM | 13 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

I would spend the best part of the next month doing everything I could to clean the marks off the flagstones... But when I sold the family home 30+ years later, you could still see them - like a dark signature written with my reckless stupidity across half the property. 5/

31/8/2025, 3:22:59 PM | 20 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

After a minute or two of emitting black smoke, the guttering peeled away from the house with a metallic shriek. Time stood still as I watched it fall with an impressive SLAP! across the full length of the garden path in a stinking, bubbling molten mess. 4/

31/8/2025, 3:22:59 PM | 9 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Ten minutes later, this blossomed into an evil-smelling pillar of white flame that might have been visible from space. Before I managed to throw enough water on it to kill it, the fire licked up the side of our two-storey house... The plastic guttering caught fire. 3/

31/8/2025, 3:22:59 PM | 7 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

I went into the garden with some matches, set the diary merrily ablaze, stamped on it a few times to put it out, and threw it in our enormous black plastic bin on the side of the house. Reader, the still-smouldering diary was not, in fact, "put out". 2/

31/8/2025, 3:22:59 PM | 10 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

On this day in 19**, I took my teenage diary, which contained my unfiltered yearnings about one very special girl from school (who tragically continued to ignore me), & decided to hide the evidence by burning it. I was a teenager. I knew what I was doing. Nothing could *possibly* go wrong. 1/

31/8/2025, 3:22:59 PM | 40 6 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Certainly not. But maybe we can agree to disagree about arguing about not arguing.

31/8/2025, 2:29:25 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

That's upsetting. Are you sure we can't argue fruitlessly for a while about this?

31/8/2025, 2:23:49 PM | 2 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

Amplifying noisy idiots on social media is such a dangerous game: yes, you get to call them out, but you also give them exactly what they want from you. Please amplify this with a RT, share or angrily argumentative quote. Thx.

31/8/2025, 1:41:37 PM | 41 8 | View on Bluesky | view

Profile picture Jonathan Loves X-Men (@jonathanlovesx-men.bsky.social) reposted

Happy birthday to Jack Kirby.

28/8/2025, 1:06:34 PM | 2999 852 | View on Bluesky | view

Profile picture Eva Diaz (@evadiaz.bsky.social) reposted

In these tumultuous times, let us all hold on tight and continue to support our phenomenal scientists. Scroll to at least 4/ in this thread to watch the video. California is awe inspiring. The Monterey Bay, and the National Marine Sanctuary--6,000+ square miles--is a national, nay, *world* treasure.

30/8/2025, 5:05:45 PM | 18 4 | View on Bluesky | view

Profile picture Michael E. Mann (@michaelemann.bsky.social) reposted

"Despite Lack of Federal Support, US Scientists Continue Work on Key Global Climate Reports" by @bberwyn.bsky.social for @insideclimatenews.org: insideclimatenews.org/news/3008202...

30/8/2025, 5:05:17 PM | 176 55 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Thank you!

30/8/2025, 5:36:18 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Thank you for this, Christina! Fascinating.

30/8/2025, 5:27:31 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

My pleasure! Thanks for reading.

30/8/2025, 5:26:26 PM | 1 0 | View on Bluesky | view

Profile picture Webberly Rattenkraft (@factrat.bsky.social) reposted

Check out this delightful bouquet of facts about the vasty deeps, and for a vertiginously vivid evocation of the Monterey Canyon experience, check out Daniel Kraus's amazing WHALEFALL—soon to be a major motion picture!—in which a diver gets et by a sperm whale, and then things get weird. VHRRI¹!

30/8/2025, 5:01:32 PM | 7 4 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reposted reply parent

Here's a relief map of the sea floor - with the vertical scale exaggerated for clarity. But the Monterey Canyon really is on a *massive* scale: walls 1,700 metres (~1 mile) high & by the time it reaches the Pacific’s abyssal plain, it’s run out from California's coast for over 400 kilometres. 2/

Bathymetric relief map of the sea floor off California, showing the Monterey Canyon (via the Monterey Bay Aquarium Research Institute).
30/8/2025, 1:45:19 PM | 240 30 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Off the top of my head, I do not! But I will go looking.

30/8/2025, 4:09:00 PM | 0 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Their geological origin stories are actually very different! bsky.app/profile/mike... Plus they're a *long* way apart...

30/8/2025, 4:00:44 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Yay! So glad I could pass all this along to you today. :)

30/8/2025, 3:37:19 PM | 3 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

If so, I had no idea!

30/8/2025, 3:30:29 PM | 1 0 | View on Bluesky | view

Profile picture J (@journessy.bsky.social) reposted reply parent

I knew that! Apparently it's why Apple's "Monterey" operating system had a default wallpaper that looked like a big purple canyon

image image
30/8/2025, 3:18:55 PM | 25 1 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

(@goldengateblond.bsky.social - not sure if you know about this already, since it's your corner of the world?)

30/8/2025, 3:12:25 PM | 15 2 | View on Bluesky | view

Profile picture stevethdemocrat (@stevethdemocrat.bsky.social) reposted

This is really interesting! Give it a read!

30/8/2025, 2:40:31 PM | 15 4 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

🙏 Thank you, Roger! So kind.

30/8/2025, 3:05:06 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reposted

If you’ve ever visited California’s Monterey Bay and looked out over the immensity of the Pacific - well, I hear it’s lovely. But how many of its roughly 4 million visitors per year know that beyond the surf, they’re also in the presence of the second Grand Canyon of the United States? 1/

A placid view of Monterey Bay at dusk.
30/8/2025, 1:39:43 PM | 1495 243 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Oh, fantastic. I'm so glad it's taught at school, and kids have access like that. 😍 Hooray for science teaching working in all the right ways!

30/8/2025, 2:37:31 PM | 8 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

That one actually has a more conventional geological explanation: it's at the boundary between two tectonic plates, where one subducts (dives under) the other! The result in this case is the deepest-underwater point on the planet.

Cross-section of the geology of the Mariana Trench. Map showing the location and extent of the Mariana Trench, via Wikipedia.
30/8/2025, 2:31:26 PM | 4 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

And if you enjoyed *that* thread, here's another mindblower of a story I covered a while back: bsky.app/profile/mike... Thanks for reading!

30/8/2025, 2:25:37 PM | 29 4 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

And finally, thanks to everyone at the Monterey Bay Aquarium Research Institute, whose terrific research I relied upon when putting this thread together: www.mbari.org/know-your-oc... (Everyone working in the Earth Sciences: you deserve better than what's happening to science funding right now.)

30/8/2025, 2:21:01 PM | 107 8 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

If you enjoy big-wow sciencey stuff like this, you may enjoy my science newsletter, Everything Is Amazing! everythingisamazing.substack.com It's totally free to sign up. 9/

30/8/2025, 2:16:16 PM | 64 10 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Absolutely - and also everyone working for the Monterey Bay Aquarium Research Institute! (I relied on their website for a lot of this thread.) But I didn't know it was unusually cold! Thanks for that. Makes sense.

30/8/2025, 2:10:42 PM | 4 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

But it's not just Monterey. There are undersea rivers all over the world! Here's the coast of Portugal, where an undersea river flows down a narrow channel inside the five-mile-wide (8km) Nazaré canyon, running out to reach the Atlantic abyssal plain nearly 2.5 miles (4km) beneath the surface. 8/

A colour-coded bathymetric relief map (with vertical height exaggerated) showing the huge canyon running out from the Portuguese coastline called the Nazaré Canyon.
30/8/2025, 2:08:51 PM | 90 8 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

."...picking up speed & momentum as it moves until it flows like a liquid. Once started, an undersea river can flow for weeks & even months at a time, moving the same amount of sediment in one go than all the world’s land-based rivers transport in an entire year." www.bbc.co.uk/future/artic... 7/

30/8/2025, 2:01:17 PM | 95 11 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

“Rather than flows of fresh (or at least salty) water, undersea rivers are slurries of silt and sand that cascade along channels on the seabed. Each particle tumbles through the water under its own weight. A new river starts on the continental shelf like an avalanche in the mountains..." 6/

30/8/2025, 2:01:17 PM | 79 7 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

In another parallel with the Grand Canyon, it seems to have been carved out by a river... And that river is *still flowing*, under thousands of meters of ocean! Welcome to the weird & wonderful world of UNDERWATER RIVERS. 5/

Unsplash photo of the murky green underside of the surface of the ocean by Tim Marshall.
30/8/2025, 1:59:37 PM | 127 10 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Courtesy of the Monterey Bay Aquarium Research Institute and Scientific American, this is what they’d see if those thousands of vertical metres of ocean hiding it from view suddenly drained away: www.youtube.com/watch?v=jgfk... But how did it get this way? 4/

30/8/2025, 1:51:15 PM | 109 18 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

It's not far off being as impressive as the Lomonosov Ridge (which I'm still amazed isn't better known) - bsky.app/profile/mike... But it’s right under the noses of millions of Californians & visitors, unknown to many of them, because of all that fun blue stuff that’s currently in the way. 3/

30/8/2025, 1:48:57 PM | 106 9 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Here's a relief map of the sea floor - with the vertical scale exaggerated for clarity. But the Monterey Canyon really is on a *massive* scale: walls 1,700 metres (~1 mile) high & by the time it reaches the Pacific’s abyssal plain, it’s run out from California's coast for over 400 kilometres. 2/

Bathymetric relief map of the sea floor off California, showing the Monterey Canyon (via the Monterey Bay Aquarium Research Institute).
30/8/2025, 1:45:19 PM | 240 30 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

If you’ve ever visited California’s Monterey Bay and looked out over the immensity of the Pacific - well, I hear it’s lovely. But how many of its roughly 4 million visitors per year know that beyond the surf, they’re also in the presence of the second Grand Canyon of the United States? 1/

A placid view of Monterey Bay at dusk.
30/8/2025, 1:39:43 PM | 1495 243 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

I don't think it's today. But when that day comes, let's all meet on the biggest Zoom call in history and sing this together: www.youtube.com/watch?v=r6cn...

30/8/2025, 1:33:49 PM | 64 1 | View on Bluesky | view

Profile picture Paul Frazee (@pfrazee.com) reposted

It was wild

29/8/2025, 5:37:46 PM | 1458 201 | View on Bluesky | view

Profile picture Patrick Vallely (@pjvphotography.bsky.social) reposted

"Pat, why do you carry that ridiculous 600mm lens on long hikes?" Buddy, I can see mountains reflected in the eyes of a trailside pika.

A pika sits on a mossy rock. Tighter crop of the same pika, focusing on its head. An even tighter crop, focusing more on the pika's eye. An extremely tight crop of the pika's eye, emphasizing their reflection of an early morning mountain scene.
28/8/2025, 4:18:28 PM | 41559 10291 | View on Bluesky | view

Profile picture Martha Wells (@marthawells.com) reposted

Re-upping this again, please spread far and wide:

28/8/2025, 2:55:28 PM | 759 556 | View on Bluesky | view

Profile picture Martha Wells (@marthawells.com) reposted

Humblebundle to support World Central Kitchen, and get a bunch of my books from @tordotcom.bsky.social including Murderbot and Witch King! #booksky www.humblebundle.com/books/martha...

24/8/2025, 2:57:35 AM | 1626 1103 | View on Bluesky | view

Profile picture Eric Topol (@erictopol.bsky.social) reposted

Good to see @bsky.app has emerged as the social media platform of choice for science stuff arstechnica.com/science/2025...

27/8/2025, 5:33:52 PM | 1224 309 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Thank you so much. 🙂 So glad you enjoyed it (even though yes, it's a proper horror story of a thing)...

27/8/2025, 12:37:40 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

You mean "the Ouse is so working-class salt-of-the-earth backbone of Britain", with none of your faux-silver-spooned elitist feckless hobnobbing with royalty behaviour like you'd get with the Foss. The Ouse is Sean Bean. The Foss is Salt Bae.

26/8/2025, 8:31:39 PM | 5 1 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

As a social media commenter I should be hyper-partisan, so: The Foss? That sheep-dropping-spattered upstart of a (King's) pond? Bah. Now the OUSE is a different matter, with its head in York and its feet in't whole world. Many a fortune made along that river. You get nowt but asthma from the Foss.

26/8/2025, 7:27:25 PM | 1 0 | View on Bluesky | view

Profile picture Maggie Harrison Dupré (@mharrisondupre.bsky.social) reposted

An absolutely harrowing and important story -- ChatGPT and other chatbots are becoming deeply enmeshed in many people's personal and social lives to an incredible degree, and the consequences can be devastating.

26/8/2025, 1:35:42 PM | 169 67 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Thank you for your fine work on this, because it must have taken such a heavy toll. Utterly horrifying.

26/8/2025, 2:48:29 PM | 6 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

Christ almighty, this is a horrifying story. >>“I want to leave my noose in my room so someone finds it and tries to stop me,” Adam wrote at the end of March. “Please don’t leave the noose out,” ChatGPT responded. “Let’s make this space the first place where someone actually sees you.”<<

26/8/2025, 2:47:17 PM | 21 8 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Yep, by Jeff Vandermeer. I really enjoyed the film, but the books (which differ from the film in many places) are much richer and weirder. A tangle of conceptual thickets to pull you in, until there's no escape.

25/8/2025, 8:48:59 PM | 2 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

("Annihilation" and its sequels will forever have a place in my heart, and that place is marked "No Answers, Just Questions". We need more stories like that.)

25/8/2025, 8:11:10 PM | 22 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

Carina gets it.

image
25/8/2025, 8:09:19 PM | 38 1 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Oh wow. Thank you for all of this! Had no idea...

25/8/2025, 6:45:03 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

🙂Thank you, that's immensely kind of you to say.

25/8/2025, 6:44:16 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reposted

This beautiful forest is not what it seems. It's a quaking aspen (Populus tremuloides) in Utah, nicknamed Pando. It may *look* like a mass of 47,000 aspens, but it’s actually a clonal organism, connected by a root system over 42.8 ha./106 acres. But this is not the wildest thing. 1/ 📷: J Zapell

Photo of Pando, a quaking aspen with white bark and yellow leaves against the blue Utah sky - looking like a forest, but actually clones of the same organism.
6/12/2024, 3:36:56 AM | 434 104 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reposted

And so the trilogy is finally complete: bbc.co.uk/news/uk-engl... (Hat-tip Charlene Storey.)

BBC headline: Tweet from Brigit Strawbridge: Headline in The Independent newspaper:
26/11/2024, 8:13:27 PM | 43 5 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Actually, here's something from a while back that will never not make me laugh: bsky.app/profile/mike...

25/8/2025, 6:14:37 PM | 6 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

It's a mad occupational tic that on days like today when I'm up to my ears actually writing stuff, the social-media part of my brain shrieks "COME ON, DO YOUR JOB." So let's both pretend I just posted a long sciencey thread. I hope you enjoyed it. Thx. (Yes, I know this isn't how it works.)

25/8/2025, 6:05:10 PM | 20 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reposted reply parent

However, no illusion will ever blow my mind like the one at the end of this clip from a children's TV show in the 70s & 80s: www.youtube.com/watch?v=0Krp... Honestly. You are NOT going to be able to wrap your head around it. (Explanation: everythingisamazing.substack.com/p/the-room-w...)

24/8/2025, 12:48:16 PM | 106 25 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reposted

These lines are parallel. It's a riff on the classic Café Wall Illusion, first described in 1894 by the splendidly-named Hugo Münsterberg: en.wikipedia.org/wiki/Caf%C3%... He called it the "kindergarten illusion" - renamed in 1973 based on a café in Bristol. (H/t Nichol.s.67 on Threads.)

A riff on the classic café wall illusion (also known as the Münsterberg illusion or the kindergarten illusion) - a geometrical-optical illusion in which the parallel straight dividing lines between staggered rows with alternating dark and light rectangles (such as bricks or tiles) appear to be sloped, not parallel as they really are.
24/8/2025, 12:44:22 PM | 95 13 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Sorry, Dave's family! 😅

24/8/2025, 3:02:36 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

I hear you.

24/8/2025, 2:45:12 PM | 1 0 | View on Bluesky | view

Profile picture Ada Palmer (@adapalmer.bsky.social) reposted

French and Canadian researchers have shown that faulty mitochondria directly drive memory loss in dementia. Using a new tool to boost mitochondrial activity in mice, they restored memory performance, proving cause and effect for the first time. buff.ly/2REM0fd #ShareGoodNewsToo

24/8/2025, 1:50:00 PM | 912 351 | View on Bluesky | view

Profile picture Kameron Hurley (@kameronhurley.com) reposted

Read the article explanation here first and then watch the video. So good!

24/8/2025, 1:14:45 PM | 30 9 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Agree on how reassuring! The adventure of exploring other people's perspectives on our so-called "shared reality" is endlessly interesting. (I've got to stop linking to my own work which is very tedious of me, sorry, but if you didn't see, I just wrote this: bsky.app/profile/mike...)

24/8/2025, 2:05:09 PM | 1 1 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Thank you for the share! I thought this was the rare illusion that works on absolutely everyone, but someone in another comment says their kid can't see it. Mind blown yet again.

24/8/2025, 1:41:07 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Oh wow. Well, tell them they have a truly amazing brain, because that's one of the few illusions that seems to work on just about everyone! I've never talked to a person who it didn't work on, in fact...

24/8/2025, 1:38:41 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

It's how it's so completely impossible to unsee. Normally you can "flip" illusions to see reality at some point. This one? Never.

24/8/2025, 1:13:36 PM | 1 0 | View on Bluesky | view

Profile picture John Scalzi (@scalzi.com) reposted

This feels like a spot of good news www.sciencedaily.com/releases/202...

23/8/2025, 11:31:03 PM | 25117 7246 | View on Bluesky | view

Profile picture Ada Palmer (@adapalmer.bsky.social) reposted

For those unfamiliar: the “brains aren’t fully formed until 25” myth was a misread of a study that measured subjects’ brain dvlpmnt UNTIL age 25 & then the study stopped, & it was misreported as development ending then when really the DATA ends then & past 25 we have no data yet. Misreported science

23/8/2025, 8:44:40 PM | 1246 476 | View on Bluesky | view

Profile picture Jane Duke (@janeduke.com) reposted

And if you squint all the lines go straight. 👀

24/8/2025, 12:54:18 PM | 22 7 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

However, no illusion will ever blow my mind like the one at the end of this clip from a children's TV show in the 70s & 80s: www.youtube.com/watch?v=0Krp... Honestly. You are NOT going to be able to wrap your head around it. (Explanation: everythingisamazing.substack.com/p/the-room-w...)

24/8/2025, 12:48:16 PM | 106 25 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

These lines are parallel. It's a riff on the classic Café Wall Illusion, first described in 1894 by the splendidly-named Hugo Münsterberg: en.wikipedia.org/wiki/Caf%C3%... He called it the "kindergarten illusion" - renamed in 1973 based on a café in Bristol. (H/t Nichol.s.67 on Threads.)

A riff on the classic café wall illusion (also known as the Münsterberg illusion or the kindergarten illusion) - a geometrical-optical illusion in which the parallel straight dividing lines between staggered rows with alternating dark and light rectangles (such as bricks or tiles) appear to be sloped, not parallel as they really are.
24/8/2025, 12:44:22 PM | 95 13 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

*muffled shriek of agreement from the garden*

23/8/2025, 2:21:13 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

Update: a wee correction, mea culpa! bsky.app/profile/mike... *wipes egg off face*

23/8/2025, 11:24:15 AM | 12 2 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

I feel pretty sure the reaction of the gentleman in the video is genuine. But what he’s probably experiencing is colours he could *already* see becoming much sharper and more distinct. It seems that’s something EnChroma glasses *can* do. But they can’t “fix” colour-blindness outright. Mea culpa!

23/8/2025, 11:23:10 AM | 13 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

UPDATE: whoops! In this piece I included a video of someone emotionally overcome using EnChroma glasses, which initially claimed to correct colour-blindness. Thanks to a reader I learned this has been convincingly debunked (see links on EnChroma’s Wikipedia): en.wikipedia.org/wiki/EnChrom... 1/

23/8/2025, 11:21:18 AM | 6 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Thank you! (And also I hope you know that On Looking was one of the books that inspired me to start my newsletter, so coming from you this means a lot, and also I'm British and can't handle compliments so now I will spend tomorrow face-down in the garden shrieking wildly, but thank you. Gosh.)

22/8/2025, 11:43:53 PM | 1 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Hooray! 👋 Yes, when I first learned that isn't how most people read, I couldn't quite believe it.

22/8/2025, 10:04:32 PM | 2 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

That's a really good question - and a really hard one to answer! Part of it seems to be down to a tiny lump of tissue called the hippocampus, which is a kind of "sorting hat" for our memories. When it gets damaged, really weird things happen: everythingisamazing.substack.com/p/the-man-wh...

22/8/2025, 9:35:26 PM | 9 2 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

🥹Thank you. That's so nice of you to say.

22/8/2025, 9:31:20 PM | 2 0 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

You are the kindest. THANK YOU. :)

22/8/2025, 9:29:41 PM | 0 0 | View on Bluesky | view

Profile picture Khashoggi's Ghost (@urocklive1.bsky.social) reposted

Wow. This whole article will blow your mind.

22/8/2025, 9:14:33 PM | 111 35 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social)

I just wrote 14 ways the overcooked blancmange inside your skull is a lot more interesting than an AI chatbot - and if you like reminders about how absolutely *incredible* your brain is, I reckon you might enjoy it: everythingisamazing.substack.com/p/14-ways-yo... Ta.

22/8/2025, 7:13:11 PM | 76 22 | View on Bluesky | view

Profile picture Doug Mack (@douglasmack.bsky.social) reposted

Okay let's do a quick research thread of bribes hidden inside food or food packaging 1. Easter eggs, Alaska, 2008

21/8/2025, 3:11:32 AM | 141 46 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Thank you so much, Josh!

21/8/2025, 4:54:13 PM | 1 0 | View on Bluesky | view

Profile picture 𝙲𝚑𝚊𝚛𝚕𝚎𝚜 𝙲. 𝙼𝚊𝚗𝚗 (@charlescmann.bsky.social) reposted

My thanks to the generous people at Scientific American, who asked for a piece on the overturning of scientific paradigms and didn't blink when they got a piece about relativity, malaria, surveys of the Great Plains, mammograms, LLMs, climatology, COVID, Back to the Future, and some other stuff.

21/8/2025, 4:43:14 PM | 80 26 | View on Bluesky | view

Profile picture Mike Sowden (@mikeachim.bsky.social) reply parent

Oh wow.

21/8/2025, 4:39:55 PM | 0 0 | View on Bluesky | view