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jordan

@jordan.matelsky.com
495 followers 899 following 412 posts

making computers better using brains and making brains better using computers. computational neuro and dumb little web apps sticking a steam wand directly into my brain and frothing it like a cappuccino at @kordinglab. senior research scientist at JHU/APL

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jordan @jordan.matelsky.com · 08/09/2026
amazing crowd today to save the Academy of Natural Sciences! save-the-academy.org and awesome speech by Councilwoman @ninaahmadphl.bsky.social!! #savetheacademy @sarahmackattack.bsky.social @skypeascientist.bsky.social @philadelphiascienceaction.substack.com @greenphilly.bsky.social
a large crowd gathers around the Academy of Natural Sciences in Philadelphia on a bright sunny day, carrying signs that say variations of "Save the Academy"
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jordan @jordan.matelsky.com · 04/09/2026
for #FossilFriday, two of the most charismatic displays at the Museum Of The Moment, the Academy of Natural Sciences here in Philly
a pencil drawing of a mosasaur skeleton, showcasing its very awesome teeth and not showcasing its anything else because I stopped drawingt rex. classic. drawing in pencil on paper. skull only, got bored and stopped.
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jordan @jordan.matelsky.com · 01/09/2026
When the Academy of Natural Sciences opened, paleontology had just been founded and the first steam locomotive launched. All other custodians of this museum preserved its incredible cultural and scientific heritage for 200 years. This is an embarrassment to the Drexel administration forever.
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Jo Martin @jrymart.bsky.social · 05/08/2026
Can neural networks think like geomorphologists? @gregtucker.bsky.social and I trained a neural network to invert the streampower-diffusion model, and then opened the black box. It learned how valley spacing and drainage density connect to process. Out now in GRL: doi.org/10.1029/2026...
doi.org
Can Neural Networks Think Like Geomorphologists?
A simple neural network can infer parameters from synthetic topography generated by a process-based numerical model of landscape evolution The network can be queried to identify a sensible relati...
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Turan Orujlu @turanorujlu.bsky.social · 25/07/2026
UAI 2026 paper: A genetic perturbation can change the connectome, a new policy can rewire economic links between firms. In each case, interventions change the graph itself which standard SCMs treat as fixed. We tackle this in Partially Observed Structural Causal Models (POSCMs).
Expanded DAG for a 3-node POSCM under ordered generation. An exogenous ordering τ feeds context variables β₁, β₂, β₃; each βᵢ generates adjacency variables A_ji, which gate the value channels between endogenous variables V₁, V₂, V₃ and also feed the mechanism variables f₁, f₂, f₃. Phase I covers structure and context generation; Phase II covers mechanism assignment and value generation.
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jordan @jordan.matelsky.com · 20/07/2026
So it turns out you can make holograms with a pen-plotter: blog.jordan.matelsky.com/Penplotter-h... #penplotter #creativecoding
blog.jordan.matelsky.com
Making holograms with a pen plotter
I have a pen-plotter! It’s great. It’s like having a printer but slow and it breaks more often. I got it on eBay and it came sorta broken and I immediately spent the difference between what I paid and...
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jordan @jordan.matelsky.com · 20/07/2026
well that's awfully young for a prime minister
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jordan @jordan.matelsky.com · 20/07/2026
well that's awfully young for a prime minister
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jordan @jordan.matelsky.com · 20/07/2026
So it turns out you can make holograms with a pen-plotter: blog.jordan.matelsky.com/Penplotter-h... #penplotter #creativecoding
blog.jordan.matelsky.com
Making holograms with a pen plotter
I have a pen-plotter! It’s great. It’s like having a printer but slow and it breaks more often. I got it on eBay and it came sorta broken and I immediately spent the difference between what I paid and...
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jordan @jordan.matelsky.com · 18/07/2026
hey, come on now blueblocks.jordan.matelsky.com
the blueblocks game (which i freakin made) doesn't accept the word "ediacaran"
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jordan @jordan.matelsky.com · 14/07/2026
these are some blender-ass conference snacks #blender #blender3d @blender.org #blenderguru
small donuts for a conference snack that look like the classic blenderguru tutorial donut
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jordan @jordan.matelsky.com · 29/06/2026
booking a trip to Florence right after reading @adapalmer.bsky.social's "Inventing the Renaissance" is like being 8 and walking past an ice cream store and hearing your parents say, "why don't we go in!" www.adapalmer.com/publication/...
adapalmer.com
Inventing the Renaissance - Ada Palmer
In Inventing the Renaissance, acclaimed historian Ada Palmer provides a fresh perspective on what makes this epoch so captivating.
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jordan @jordan.matelsky.com · 28/06/2026
oh wtf @biorxiv-neursci.bsky.social, I searched for four papers in five minutes while writing a grant and that gets me banned??

Sorry, you have been blocked
You are unable to access www.biorxiv.org
Why have I been blocked?

This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.
What can I do to resolve this?

You can email the site owner to let them know you were blocked. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.
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jordan @jordan.matelsky.com · 15/05/2026
rotisserie pillow. is this anything?
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jordan @jordan.matelsky.com · 27/06/2026
Just donated to #fdroid because the #FOSS ecosystem is a beautiful thing! Learned a lot when I published Coppelia [blog.jordan.matelsky.com/coppelia], my Jellyfin music client, and the review team and community was extraordinary!! #foss #jellyfin #android
A screenshot of the fdroid donation receipt showing 2052 financial contributors and a $50 donation
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jordan @jordan.matelsky.com · 15/06/2026
so I just realized I forgot to #skeetprint my Contactomes paper... (is that what we're calling it?) www.biorxiv.org/content/10.6... @kordinglab.bsky.social @dacolon.bsky.social smithneurallab.weebly.com @jhuapl.bsky.social #academicsky #preprint #neuroscience
a single dendritic spine with a handful of synaptic partners but a HUGE number of contact partners
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jordan @jordan.matelsky.com · 15/06/2026
so I just realized I forgot to #skeetprint my Contactomes paper... (is that what we're calling it?) www.biorxiv.org/content/10.6... @kordinglab.bsky.social @dacolon.bsky.social smithneurallab.weebly.com @jhuapl.bsky.social #academicsky #preprint #neuroscience
a single dendritic spine with a handful of synaptic partners but a HUGE number of contact partners
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Ethan Mollick @emollick.bsky.social · 28/05/2026
Lem and Douglas Adams were the only true prophets of LLMs in science fiction.
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Civic Grit @civicgrit.bsky.social · 22/05/2026
Here is an aerial before / after I-76 of Lansdowne Dr. The highway ramps forced the removal of all the park trails, which served as crucial connectors for park visitors. In many ways the reasonable thing to do would be to turn Lansdowne over to people walking / biking to restore park connectivity.
Lansdown Dr. before I-76 showing many trails adjacent to the road.Lansdown Dr. after I-76. None of the trails remain.
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jordan @jordan.matelsky.com · 15/05/2026
rotisserie pillow. is this anything?
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jordan @jordan.matelsky.com · 13/05/2026
reminder for those writing grants these days — we made a tool to fill out your NSF/NIH COA lists automatically :) bib.experiments.kordinglab.com/nsf-coa #academicsky
bib.experiments.kordinglab.com
NSF COA | Jordan Matelsky
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jordan @jordan.matelsky.com · 25/04/2026
Hi all reMarkable users — remailable.getneutrality.org is back up and running! You can now email documents to your tablet again. #reMarkable
remailable.getneutrality.org
ReMailable
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jordan @jordan.matelsky.com · 23/04/2026
this is fun!! I just spent a ton of hours making this animation for my dissertation defense in @blender.org, I wish I had known about this a little sooner 😆 mine is of course not real data...
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jordan @jordan.matelsky.com · 23/04/2026
✅ (🎉 @kordinglab.bsky.social)
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Community for Rigor @comm4rigor.bsky.social · 15/04/2026
There's still time to apply!
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jordan @jordan.matelsky.com · 13/04/2026
OMG. so cool!
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jordan @jordan.matelsky.com · 12/04/2026
"whats yer horse's name, pardner?" [shoving KISSBABY's nametag under my saddle] uh she doesn't have one
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jordan @jordan.matelsky.com · 11/04/2026
coolest visuals in the world, science is amazing
small integrity crew capsule against a backdrop of the oceansmall integrity crew capsule against a backdrop of the skyintegrity crew capsule with drogues and parachutes openintegrity crew capsule with drogues and parachutes open
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jordan @jordan.matelsky.com · 08/04/2026
should I work on my dissertation defense slides or should I learn how to use @blender.org geometry node simulation zones...
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jordan @jordan.matelsky.com · 07/04/2026
Such cool work by @felipeparodi.bsky.social, bringing face detection, landmark tracking, and facial movement analysis to primate research! 🐒🦍🦧 totally opens up new ways to study communication and social behavior. Felipe rocks!
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jordan @jordan.matelsky.com · 31/03/2026
Love this — such a great interactive! @inquirer.com Here's a pro move: "How are you gonna afford this?" was such a non-issue in my playthrough because dropping police spending by 20% paid for the rest of my entire Philadelphia.
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Konrad Kording @kordinglab.bsky.social · 31/03/2026
Preprint out arguing that we should build the techology to translate (compile) molecularly annotated connectomes into dynamics. I think this is incredibly important. arxiv.org/abs/2603.25713
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jordan @jordan.matelsky.com · 26/03/2026
excited to announce it's time for me to defend my dissertation! come hang :) april 21, 2026 1:30pm EDT gaulton auditorium at UPenn or Zoom jordan.matelsky.com/phd
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jordan @jordan.matelsky.com · 26/03/2026
excited to announce it's time for me to defend my dissertation! come hang :) april 21, 2026 1:30pm EDT gaulton auditorium at UPenn or Zoom jordan.matelsky.com/phd
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jordan @jordan.matelsky.com · 24/03/2026
getting a good workout on my sitting-still muscles these days
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jordan @jordan.matelsky.com · 16/03/2026
someone's working late to fix the production string replacement fail tonight at Strava I'll bet
screenshot of Strava showing they forgot to replace the string interpolation of segment titles with the actual text
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jordan @jordan.matelsky.com · 14/03/2026
dissertation goes out in 20 days, can confirm
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jordan @jordan.matelsky.com · 04/03/2026
the base64 encoding of this image is also this image blog.jordan.matelsky.com/bb64/
the famous "cameraman" demo image showing a guy looking through a camera on a tripodthe famous "cameraman" demo image showing a guy looking through a camera on a tripod. but this time it's represented in ascii art! and it's the data URL of the first image.
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jordan @jordan.matelsky.com · 05/03/2026
bsky bot that auto-replies to skeets with dollar amounts saying "$21.5M SEPTA expansion is worth 28 minutes of doing war"
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jordan @jordan.matelsky.com · 04/03/2026
We could fund an entire PhD student on the expenses the military burned in the time it took you to read this
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BWJones @bwjones.bsky.social · 04/03/2026
With this war on Iran costing $1B per day, we are now at 4$B, an amount that would fund 3,200 five year NIH biomedical research grants.
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jordan @jordan.matelsky.com · 04/03/2026
the base64 encoding of this image is also this image blog.jordan.matelsky.com/bb64/
the famous "cameraman" demo image showing a guy looking through a camera on a tripodthe famous "cameraman" demo image showing a guy looking through a camera on a tripod. but this time it's represented in ascii art! and it's the data URL of the first image.
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Community for Rigor @comm4rigor.bsky.social · 23/02/2026
Join our live webinar on March 11 @ 12 pm ET to learn more about PlanYourScience.com the app to help you plan your research and guide you through the process. RSVP today @ buff.ly/una620W @kordinglab.bsky.social @gunnarblohm.bsky.social @jordan.matelsky.com
c4r.io
Webinar - PlanYourScience.com
Doing good science can be hard, even overwhelming. Planning your study helps. Join us to learn more about the app that will help you get started and guide you through the process.
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jordan @jordan.matelsky.com · 04/03/2026
One day I will drink my last beer from Brewer's Art in Baltimore and shed a single tear
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public health guy @publichealthguy1.bsky.social · 19/02/2026
we couldn't use government funds to buy coffee (like, folgers ground coffee) when i worked on a CDC outbreak emergency response
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jordan @jordan.matelsky.com · 19/02/2026
I remember the days before @blender.org even had a "save before closing" :)
meme graphic of a soldier shielding a sleeping person with his body; the bullets are labeled "IT DEPT TRYING TO REMOTELY FORCE-REBOOT MY LAPTOP" and the soldier is labeled "BLENDER SAVE CHANGES BEFORE CLOSING DIALOG"
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jordan @jordan.matelsky.com · 19/02/2026
I'm super pumped about this! LLMs in scientific publishing have at times been a promethean tragic boon. PlanYourScience.com feels like putting LLMs where they belong!
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jordan @jordan.matelsky.com · 18/02/2026
This is such a scourge of modern ML conferences too — "I didn't quite know how to embed this object so I just asked an LLM to spit out 64 floating-point numbers"
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Steven Nelson @snelsonus.bsky.social · 09/02/2026
If Bad Bunny can cover the history of Puerto Rico, colonialism, transatlantic slavery, hemispheric consciousness, as well as contemporary life and politics in under 14 minutes, you can do your 15- or 20-minute conference presentation with time to spare.
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Theo Sanderson @theo.io · 08/02/2026
I made a map of 3.4 million Bluesky users - see if you can find yourself! bluesky-map.theo.io I've seen some similar projects, but IMO this seems to better capture some of the fine-grained detail
bluesky-map.theo.io
Bluesky Map
Interactive map of 3.4 million Bluesky users, visualised by their follower pattern.
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