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nrr.corvidae.org
Everywhere Vanishing Bean Curvature
@nrr.corvidae.org
2.4K followers 4.6K following 9.5K posts
Mennonite-raised. I get told "no" a lot. I'm finishing a math degree I started 20 years ago. I pretend to be a maned wolf-shaped tree on the Internet. You've used stuff I've worked on.

Trans rights are human rights.

I'm @nrr1.618033989 on Signal.
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nrr.corvidae.org
I'm presently in possession of the NOC list. Or am I?

It could just be a little sleight of hand.
It's a photograph of the back of a 230-megabyte magneto-optical disk like one can see in the 1996 Brian De Palma film Mission: Impossible.
November 20, 2025 at 3:19 AM
nrr.corvidae.org
Go on…
It's a photograph of a cat. She's shown here flopped in a box and using one of the sides and its constituent flap as a pillow. Her glance into the camera is extremely half-lidded.
October 25, 2025 at 3:24 PM
nrr.corvidae.org
Current catus, addendum
It's a photo of a cat. Laureline here is shown after spending a few minutes nibbling on my toes. She's seen fit to put her chin between my crossed feet and is taking advantage of them to be her pillow.
October 5, 2025 at 8:32 PM
nrr.corvidae.org
Current catus
It's a photograph of a cat who's curled up in a cardboard box. Laureline here is looking at the camera with her chin propped up by the side of the box.
September 27, 2025 at 7:38 PM
nrr.corvidae.org
For those curious what mine read that year…
It's a photograph of a Midwest Furfest 2016 badge. It reads, "*sagely nods*," in the manner of someone posing (as we called it on MUCKs) or doing an action over an instant messenger.
September 20, 2025 at 5:16 AM
nrr.corvidae.org
Current catus

In the background, my old and busted laptop. In the foreground, the new and improved.

(This is where I discovered that the cropping tool built into the Bluesky app is busted.)
It's a photograph. In the foreground is the boy, assuming his usual position of curling in my lap. In the background, on the couch, is my laptop.
September 17, 2025 at 11:32 PM
nrr.corvidae.org
That'd be the Itanium (and Itanium 2).

Though, neat fun fact: VR adoption looks kinda similar!
It's a plot of Itanium (but not Itanium 2) sales forecasts across a decade running from 1999 to 2009. They start out exponential, then become quadratic, only to taper off to something linear in 2005. The actual sales figures, ranging only from 2003 to 2006, are underwhelming in comparison. It's a plot of shipments and shipment forecasts of virtual and augmented reality headsets from 2016 to 2028. Again, like Itanium, the actual shipments are underwhelming compared to the forecasts while they trend from exponential to quadratic to linear.
September 11, 2025 at 8:24 PM
nrr.corvidae.org
The abbreviation is silly, but I wish we had these on Caltrain. (To the best of my knowledge, we don't?)

The idea is that you use measuring equipment to determine which wheels have flat spots so they can be more easily spotted and addressed.

For the English, see below.

(Source: der kleine ICE)
It's a photograph with annotations of a German locomotive-hauled train, possibly a Regiobahn. Arrows are pointing to a specific part of the track that has an apparatus attached to it that interfaces with the wheels as an element of the consist rolls over it. The text reads, "Unrunde Räder werden durch spezielle Messsteifen entdeckt. Hierfür gibt es sogar einen extra komplizierten Namen: Diagnoseanlage für unrunde Räder, abgekürzt DafuR."
September 8, 2025 at 8:43 PM
nrr.corvidae.org
Have another. (by hand-drawn-square.tumblr.com)
It's a reinterpretation of Magritte's "Treachery of Images." Here, we've smashed it together with pod racing from Star Wars Episode 1: "Now, _this_ is une pipe." "Now, _this_ is pod racing."
August 26, 2025 at 12:13 AM
nrr.corvidae.org
It's a reinterpretation of Magritte's "Treachery of Images" that smashes it with the Mike Judge cartoon King of the Hill. Namely, Bobby Hill is seen here proclaiming, « C'est ma pipe ! Je ne te connais pas ! », in reference to the episode wherein he attends a self-defense class. "That's my purse! I don't know you!"
August 25, 2025 at 11:22 PM
nrr.corvidae.org
Is it worth it?
It's a catalog photo of some sliced button mushrooms. It's a heavily cropped photo of a cat's nose to highlight its similarity in shape to a sliced button mushroom. (In this case, Laureline's.)
August 23, 2025 at 4:56 AM
nrr.corvidae.org
Current catus
It's a close-up photograph of a cat's paw (with a little bit of pinna also showing).
August 15, 2025 at 9:36 PM
nrr.corvidae.org
Current catus

He just jumped up here, flopped like this, and promptly conked out. He went straight to dreaming, no joke.

If anyone has ever wondered what it's like to be a cat bed, ask me anything.
It's a photograph of a cat. He's shown here in my lap, with his face pushed into the back of a Western-style futon, and bent in a shape that you or I would probably call "uncomfortable."
August 9, 2025 at 5:38 PM
nrr.corvidae.org
You only wish you were this respectable.
It's a photo of a cat. She's curled up and sleeping in the lowest rung of a bar cart
August 1, 2025 at 4:56 AM
nrr.corvidae.org
I really appreciate how prescient the 1979 Ridley Scott film Alien was when it came to the idea of having a keyboard with a bunch of funny buttons.
It's a (potato quality) screenshot from the 1979 Ridley Scott film Alien. Herein is depicted the self-destruct keypad, complete with buttons labeled things like "PRANC LIFT 777," "PARTICLE BEAM ABHORT," and "AGARIC FLY" (with corresponding "TRIP" buttons).
July 27, 2025 at 4:46 PM
nrr.corvidae.org
Current catus

You can't hear it, but he's snoring here.

I'd say that things are pretty much back to normal for him.
It's a photograph of a cat. The boy is shown here curled up in a ball on my lap as I'm chilling out on a Western-style futon here. Visible is one of his front legs, showing a ring of fur that's been shaved down.
July 27, 2025 at 12:58 AM
nrr.corvidae.org
If you want to take a crack at something that better approximates the C#, try this on for size. I'm all thumbs when it comes to modern C++ (and C++ metaprogramming), but this compiles and runs against cl.exe just fine.
It's a screenshot of a syntax-highlighted editor buffer full of C++ code.
July 22, 2025 at 5:21 AM
nrr.corvidae.org
Current catus
It's a photograph of a cat. Here, the girl is curled up in her box full of blankets. She's pictured after my having woken her up, and she's alertly looking somewhere behind the camera. It's a photograph of a cat. The boy here is shown curled up on an armchair with his back toward the camera. He has airplane ears in this photo.
July 21, 2025 at 9:30 PM
nrr.corvidae.org
It's just so easy to rob yourself of footguns like this.
It's a screenshot of some C# source code. Contained herein is an implementation of SecureData<T> as described in the top of the thread along with a quick toy driver to illustrate how it works.
July 17, 2025 at 12:36 AM
nrr.corvidae.org
It's a photograph of a cat who is loafed atop my backpack as it lies flat on the floor. Laureline is pictured here looking directly at the camera.
July 10, 2025 at 8:28 PM
nrr.corvidae.org
Current catus

Wherein his timing is impeccable. I have to pee.
It's a photograph of a cat who has curled himself up in my lap again. I'm lying supine on a Western-style futon.
July 9, 2025 at 7:54 PM
nrr.corvidae.org
Current catus

There's a degree of pain I endured to get this photo. If you've ever been licked by a cheetah or other big-ish cat, you'll understand what I mean.

Valérian has licked me raw more than once so far. It's like if a carnivore had a radula.
It's a photograph of a cat licking a man's forearm. Here, Valérian has decided that it is time for me to have a bath too.
July 7, 2025 at 5:25 PM
nrr.corvidae.org
I let him know, but all I got was the girl talking to me instead (she already knows she's cute). I'll try again later.
It's a photograph of a cat. The boy is shown here snoozing on a duvet.
July 6, 2025 at 3:08 AM
nrr.corvidae.org
I've been tearing apart ancient releases of NT, and we really must return to antiquity here. What we're doing isn't working.
It's a screenshot of the KeBugCheck handler from Windows NT 4.0 service pack 6. Notable is an inclusion of both the list of loaded modules and a stack trace.
June 26, 2025 at 6:28 PM
nrr.corvidae.org
Current catus

🫘
It's a photograph of a cat. The boy here is curled up in my lap, with the beans (and means, vaguely, if you look closely enough) of one of his back paws pointed right at the camera. They are pink and black.
June 13, 2025 at 2:37 PM