Catherine Gulsvig
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crgulsvig.bsky.social
Catherine Gulsvig
@crgulsvig.bsky.social
1.6K followers 600 following 1.7K posts
Classical musician, pioneering woman in tech, amateur lepidopterist, and writer from rural Wisconsin. Banner photo is the magical Eight-Spotted Forester moth. Photos are my own.
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Reposted by Catherine Gulsvig
sanders.senate.gov
Six reasons why Trump’s attack on Venezuela was very wrong:
January 5, 2026 at 10:13 PM
crgulsvig.bsky.social
A snowy #Caturday

Mao wonders when it's gonna stop. She's not crazy about having to run through snow to catch mousies.

#Tortoiseshell
Silhouette of black cat sitting on the arm of a settee, looking out a window onto a snowy scene. The cat is looking upward to the left, as if pleading with the weather gods to stop sending ice and snow and wind.
January 3, 2026 at 6:04 PM
crgulsvig.bsky.social
He caused it; he exploited it; it was foreseeable to him. Plainly put.
frankfigliuzzi.bsky.social Frank Figliuzzi @frankfigliuzzi.bsky.social · 5d
New: The House Judiciary Committee just released (on New Year’s Eve) the transcript of Jack Smith’s testimony. As I start to read the 250 page report, this Q+A in the image below jumps out: judiciary.house.gov/sites/evo-su...
December 31, 2025 at 10:15 PM
crgulsvig.bsky.social
Not sure if this qualifies for #WindowsOnWednesday but it was my view a week ago from a 'window' behind some 16' organ pipes. Folks gathering for an old-fashioned Christmas Tableaux Service. The blue-and silver panel is a scrim behind which scenes of the nativity appear once lights are turned off.
View looking down into the sanctuary of a church, showing a vaulted ceiling and an elaborate chandelier. A panel of fabric in the shape of a triptych frame appears at the front, behind which we can make out a large stained-glass window.
December 31, 2025 at 3:52 PM
crgulsvig.bsky.social
Words of wisdom here regarding LLMs
ed3d.net Ed @ed3d.net · 6d
I've spent a couple of days working on this one, and it didn't end up quite where I expected it to. But I think this is the clearest way I can describe where my head's at, why I approach LLMs in the way that I do, and why, while it's describing-not-prescribing, it's a little light prescribing too.
The abstraction you didn't ask for
When I say
ed3d.net
December 31, 2025 at 12:43 AM
crgulsvig.bsky.social
From May of this year, the glorious Cottonwood that stands guard over our house

I would nominate it for the Wisconsin Champion Trees list if it weren't for the fact that the program has been stalled by staff shortages at the Wisconsin DNR!

#ThickTrunkTuesday
#Naturephotography
A huge Cottonwood tree with a thick trunk, and a canopy that is both tall and wide, looms over a brick farmhouse.
December 30, 2025 at 10:48 PM
crgulsvig.bsky.social
Sometimes opportunities just present themselves. Taken from the window next to my piano while practicing (during a pause in practicing, of course🤣). Window screens provide extra texture!

Such a range of blues in the winter. Even the barn has a bluish cast!

#BlueSkyMonday
#BlueskyArtShow
#artprompt
View, through a screened window, of a snow-covered hill upon which stand three proud trees, casting blue shadows on the snow. Further trees appear in the background. The side of a red barn appears halfway up the hill on the left; it too casts a blue shadow. Rich blue skies see it all and appear to be reflected in the white snow's bluish tinge.
December 29, 2025 at 7:02 PM
crgulsvig.bsky.social
For #Stunday, from August 2022. Remains one of the finest specimens of a female Eastern Tiger Swallowtail I've encountered.
A stunning, large yellow butterfly with black stripes and wings edged with yellow markings. There is a "tail" at the bottom of each lower wing, with orange eyespots just above and a rich border of deep blue, like eyeshadow. The butterfly is sipping from a purple thistle in a meadow.
December 28, 2025 at 6:20 PM
crgulsvig.bsky.social
I am held hostage by Mao this cold and grey #Caturday

#Tortoiseshell
Tortoiseshell-coloured cat curled up in a comfy chair, between the arm of the chair and the photographer's leg
December 27, 2025 at 8:07 PM
crgulsvig.bsky.social
Still (well, always) thinking about #Moths, I saw the reference to #ForestFriday and thought, How about a moth in a forest?

This was some sort of Catacola (Underwing) moth I disturbed while traipsing through a local woods in July. He landed on the trunk, far too high for me to get a definitive ID.
The tall, straight trunk of a white pine set amidst other deciduous trees. Quite a ways up the trunk, we can just make out the shape of a large moth.
December 26, 2025 at 4:34 PM
crgulsvig.bsky.social
Lamé duck! Please let all the journalists start calling him that! Brilliant!
ericcolumbus.bsky.social Eric Columbus @ericcolumbus.bsky.social · 12d
Our first lamé duck president
stephenwest.bsky.social Stephen West @stephenwest.bsky.social · 13d
"About a third of the walls are now covered in gold — appliqués, frames or other decorations, a Times analysis showed."
December 24, 2025 at 7:10 PM
crgulsvig.bsky.social
Leadenhall Market, City of London, December 2025

Taken on my walk back from singing a carol service

#Christmas
#ChristmasLights
Christmas tree with dazzling lights under an arch at the entrance to a market in London.
December 24, 2025 at 1:23 PM
crgulsvig.bsky.social
And -- hear me out -- for the em dash to be given its due.
whimsicalmuse.bsky.social The Whimsical Muse @whimsicalmuse.bsky.social · 13d
Dear Santa:

All I want for Christmas is for the Oxford comma to be cherished, loved, and respected.
December 23, 2025 at 7:08 PM
crgulsvig.bsky.social
From my year-end review, this amazing White-lined Sphinx moth caterpillar (Hyles lineata)

Photo from my butterfly garden on October 3rd

#Moths
#MothsMatter
#Naturephotography
Close-up of a fat caterpillar on a green plant. His body is black with symmetrical gold markings. He sports what appears to be an orange horn just beyond his head, which is also orange. All in all he looks quite fearsome.
December 23, 2025 at 5:45 PM
Reposted by Catherine Gulsvig
rbreich.bsky.social
I’m old enough to remember when CBS News would never have surrendered to a demagogic president or any other politician. Remember Edward R. Murrow?
December 22, 2025 at 6:01 PM
crgulsvig.bsky.social
Banded Tussock moth from 18 July 2025 for #MothMonday

Still remember the thrill of coming across this guy. I love the teal stripes on his head
Close-up of a yellowish moth with delicate bands running across his wings. Each band, which is mostly light taupe, is bordered in pale teal, reflecting the teal stripes on his head.
December 22, 2025 at 3:38 PM
crgulsvig.bsky.social
Pretty pleased with how these moth calendars turned out. It's the Moth Wonderful Time of the Year!

Message me if interested!

#Moths
#MothsMatter
#Naturephotography
Cover of a 2026 calendar featuring a photo of the Hologram Moth in iridescent greens. Text below the image explains that the calendar is offered by United Plum Service (UPS).
December 20, 2025 at 4:36 PM
crgulsvig.bsky.social
The inevitable tree inspection, conducted by a certified #Tortoiseshell

#Caturday
Christmas tree, as yet undecorated, sits in a stand in front of a window. A Tortoiseshell cat has leapt up onto a small table nearby, to get a closer look. We see a snowy scene out the window.
December 20, 2025 at 4:29 PM
crgulsvig.bsky.social
Fantastic, must-watch presentation by Robert Reich
December 16, 2025 at 6:41 PM
Reposted by Catherine Gulsvig
bladeofthes.bsky.social
Donald Trump is proving Rob Reiner right every single day.
December 15, 2025 at 5:26 PM
Reposted by Catherine Gulsvig
stevenbeschloss.bsky.social
Re: Donald Trump’s comments about Rob Reiner.

Rob Reiner was a compassionate human, a devotee of democracy, a necessary moral voice and a greatly gifted creative artist.

Donald Trump is a sick sociopath and a hateful person who dishonors the human race every time he opens his mouth.
December 15, 2025 at 5:03 PM
crgulsvig.bsky.social
THAT IS THE WHOLE POINT
atrupar.com Aaron Rupar @atrupar.com · 22d
Sen. Jack Reed: "I must remind everyone that we follow the law of war, and because of that, we expect other countries. So that when our service members are in distress, they're not shot up in the water or if they're wounded, left to die. If we don't do it, then we can't expect other countries."
December 15, 2025 at 1:08 AM
crgulsvig.bsky.social
I am stunned every day by this cottonwood tree just outside my bedroom window, but the pastel pink and blue at sunset are especially striking. What an intricate system of growth.

#Stunday
Part of a very gnarled tree with tangled branches, set against a backdrop of snow and blue-and-pink sky
December 14, 2025 at 10:08 PM
crgulsvig.bsky.social
She'll do anything to get closer to that cup of espresso!

#Caturday
#CatsOfBluesky
#Tortoiseshell
View of window from the keyboard of a grand piano. Outside the window is a snowy scene, and a Tortoiseshell cat is making her presence known by standing on her hind legs on the outer window sill. On a small table next to the piano sits a metronome as well as the object of her desire, a celadon-green cup and saucer holding espresso.
December 13, 2025 at 3:22 PM
crgulsvig.bsky.social
From October 1st, in our newly-planted prairie

#Bloomscrolling
#NativePlants
#Naturephotography
#ColorADay
#YellowThu
Close-up of a yellow-petaled flower, looking down onto its head. The center appears as if it's a bunch of tiny yellow flowers, each of which may also contain a center looking like a bunch of flowers, and on we go, merrily and fractally along.
December 11, 2025 at 9:42 PM