iiinova — where your digital self keeps evolving

given a quaternion rotation q, q² doubles the rotation √q halves the rotation qˣ scales the rotation by x as a rule of thumb - whatever operator you would use with vectors, like, say, addition, elevate it to the higher order operator (multiplication) to do the same thing on a quaternion

a table comparing vector operations to quaternion operations side by side, highlighting the similarities. the quaternion variants look almost identical, except they use the next higher order operator in each expression. ie: multiplication instead of addition. exponentiation instead of multiplication, etc.

1023117

Freya Holmér @freya.bsky.social · 30/09/2026

the way this rickety 17 year old insists on sleeping right next to me every single night ;-; ❤️

thor (the cat) napping next to Freya's pillow. I should also note that the pillow itself has a cat themed print on it

103245

Freya Holmér @freya.bsky.social · 30/09/2026

idk if it would alleviate my long term fears BUT i will say, if there's a pricing squeeze coming as the top AI companies scramble for profit, it's gonna be *very* funny to observe from the sidelines as my life is strictly improved and my work is completely unaffected

424912

Reposted by Freya Holmér

George The Station Cat @george-station-cat.bsky.social · 29/09/2026

The sign clearly says TREATO COLLECTION POINT. I have presented myself for collection I don’t wish to complain, but the Treato Collection Point appears to be experiencing severe supply-chain issues. I’d like to speak to someone in management

321639145

Freya Holmér @freya.bsky.social · 30/09/2026

it's only taken about 4.5 years, or, salad's lifetime, for thor to not be grumpy with a close proximity salad salad's always been friends with thor though, even when thor hated him

salad and thor resting on the couch together, with salad leaning up against thor

32006

Reposted by Freya Holmér

Charles Louis Richter @richterscale.bsky.social · 29/09/2026

you are invited to her gallery opening

A very tiny tabby kitten in a black post-surgery onesie that looks like a tight black shirt, very chic.

343114489

Freya Holmér @freya.bsky.social · 29/09/2026

this little guy PEED ON ME twice!! ???

an adorable gray little cat who decided to mark territory on me. y'know by peeing on me (twice)

122122

Freya Holmér @freya.bsky.social · 28/09/2026

nature is beautiful when you're safe and secure with clothes and a job, with access to grocery stores and a living space but for the vast majority of creatures, nature is a survival gauntlet, and only the pathologically curious willingly seek that danger

523815

Reposted by Freya Holmér

Oatcup @oatcup.bsky.social · 27/09/2026

i hope you don't mind, i considered toast's mittens for art practice 🥺💖

A digital painting of @toast.acegikmo.com (the cat) and his very cute mittens.

21147

Freya Holmér @freya.bsky.social · 27/09/2026

I think it's important to consider toast's little mittens

toast (the cat) loafed in bed with his little mitten paws sticking out

1773875

Reposted by Freya Holmér

kelsey irene @holographic.pink · 27/09/2026

spoiled!!!! he knew it was for him!!!!! entitled, correct little fuzzball

21118

Reposted by Freya Holmér

jazz mickle @queenjazz.gay · 27/09/2026

conventional wisdom for the entire time i've been programming has always been "less code is better". the idea that we must write more code faster is ridiculous. the problem has never been rate of output

435962

Reposted by Freya Holmér

jazz mickle @queenjazz.gay · 27/09/2026

the negative effects AI is having on software is gonna be something we have to deal with for a very long time, even if it stops today. you can already see the effects in well-known vibe coded sites like bluesky and github that run like shit nowadays, but its incredibly pervasive throughout tech

646990

Freya Holmér @freya.bsky.social · 27/09/2026

the joys of a non-24h sleep cycle you have to choose either A. bedtime and waking up happens an hour later than the previous day, every day, or B. sleep deprive yourself in hopes of feeling tired at a normal bedtime hour

192708

Freya Holmér @freya.bsky.social · 26/09/2026

guy who found it appropriate to chase a large flying insect across the bed only to smash it directly into my arm photo taken shortly after he ate the evidence

salad (the cat) after a successful insect hunt, looking vaguely ominous. he is currently digesting the bug

1531921

Freya Holmér @freya.bsky.social · 25/09/2026

given a unit vector (x,y,z), the quaternion (x,y,z,0) is a 180° rotation around that axis which is neat bc you don't need any trig/euler conversion!

11234

Freya Holmér @freya.bsky.social · 25/09/2026

there is no skill these people don't consider a means to an end they want the experience machine they're begging for their AI models to create it, to hook them up to the machine

excerpt from Wikipedia's "Experience Machine":
The thought experiment: Nozick describes a machine that could provide whatever desirable or pleasurable experiences a subject could want. In this thought experiment, psychologists have figured out a way to stimulate a person's brain to induce pleasurable experiences that the subject could not distinguish from those they would have apart from the machine. He then asks, if given the choice, would the subject prefer the machine to real life?

1131128

Freya Holmér @freya.bsky.social · 24/09/2026

quaternions/4D sphere geometry isn't that complicated! just remember ( 1/√2, 0, 0, 1/√2 ) is a positive and/or negative rotation around X and/or YZ by 90° and/or 45°

913512

Freya Holmér @freya.bsky.social · 24/09/2026

you ok there buddy? did you have too much catnip

salad on his back on the couch, next to a catnip stick

432422

Freya Holmér @freya.bsky.social · 24/09/2026

rotation quaternions without roll form a topological torus in quaternion space c: if you also disallow being upside down, half of this torus is cut away, leaving a squiggly ribbon

727420

Freya Holmér @freya.bsky.social · 23/09/2026

I used to think "eh, phone cameras are so good these days, there's no need to get a dedicated camera" anyway I was very wrong, I'd just forgotten how much better proper cameras look

1145026

Freya Holmér @freya.bsky.social · 22/09/2026

coding things yourself is cool bc you get to ask yourself questions like, does an infinitely strong spring contract to 0 length if given 0 seconds to act?

1125812

Freya Holmér @freya.bsky.social · 22/09/2026

this is such a common sentiment now because of this one blog post. I don't blame people, but it's a little sad that the clickbait interpretation is so commonly held Quaternions are isomorphic to 3D Rotors from geometric algebra, it's the exact same code

51086

Reposted by Freya Holmér

Hen @hennypenny.bsky.social · 22/09/2026

Found a box that was mailed to me years ago that was never opened. What a pleasant surprise to find a limited edition 3d axis gizmo made by @freya.bsky.social - I decided to go with right-handed since I’m learning Blender.

An assortment of colorful plastic pieces on a white table top

The assembled 3d axis gizmo (right handed) sits at the base of my monitor.

01206

Reposted by Freya Holmér

Three More Years @threemoreyears.bsky.social · 19/09/2026

P.S.: the PDA was designed while trying out @freya.bsky.social 's fantastic Shapes plugin for Unity, which I still use extensively in all our games (probably until the switch to Godot). shapes create buttons and simulate ittle creases - things others would use Blender for. #screenshotsaturday

0675

Reposted by Freya Holmér

Mr F @guycalledfrank.bsky.social · 18/09/2026

Speaking of kneading cats... just look at this beautiful boy I saw today. Someone has to appreciate him...

2766

Reposted by Freya Holmér

Chet Faliszek @chetsucks.com · 18/09/2026

Bela celebrating that after the first round of the chemo protocol her cancer growth is a 1/3 the size and reacting well. So celebrating with a new nickname- socks - and endless churus.

82326

Freya Holmér @freya.bsky.social · 18/09/2026

Pontus is very shy but after hanging out and talking to him for a few minutes (at his preferred 5 meter distance) he suddenly started kneading 🧡

Pontus, a shy, orange long haired tabby cat! he's kneading the ground. one of his eyes has lots of little brown spots, it's neat

335120

Freya Holmér @freya.bsky.social · 18/09/2026

the set of all upright camera rotations (no roll, not upside down) form a sheet in quaternion space

A sheet with a grid pattern within a projection/visualization of a quaternionic space. idk how to explain it tbh it's a green yellow ribbon twisting a full turn into itself looking all goopy

826611

Freya Holmér @freya.bsky.social · 17/09/2026

I wonder what it's like to be salad

62025

Freya Holmér @freya.bsky.social · 15/09/2026

i have EXCELLENT news and the news is OTIS 🤎💛

Otis, a brown long haired cat with the most adorable grumpy face. Freya dreamed of meeting him again and it finally happened, look at him

1552341

Freya Holmér @freya.bsky.social · 15/09/2026

whenever I bring my camera to a social event and people pose for a photo I just go ???? what do i do I've done literally nothing but street (cat) photography help

91281

Reposted by Freya Holmér

nyanlife.bsky.social @nyanlife.bsky.social · 14/09/2026

Went to odoriba today. This is a place said to have been used as a dancing place for bakeneko, a type of cat yokai of legend. The train station has a bunch of subtle cat decorations