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Mike Croucher

@walkingrandomly.bsky.social
1.3K followers 1.2K following 388 posts

I’m here to discuss Mathematics, Research Software Engineering, Machine Learning and #HPC. I was @walkingrandomly on twitter Now a Community Developer Advocate at MathWorks. Author of The MATLAB Blog.

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Mike Croucher @walkingrandomly.bsky.social · 27/08/2026
Getting older sucks. The only benefit is that it beats the alternative
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Mike Croucher @walkingrandomly.bsky.social · 03/07/2026
I’m so happy that my primary games console is an @evercade.co.uk VS. Physical game media for the win!
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Mike Croucher @walkingrandomly.bsky.social · 26/06/2026
After a long hiatus, I started a new personal blog in a new location. Details in the Hello, World post stillwalkingrandomly.com/posts/hello-...
stillwalkingrandomly.com
Hello, World
The Road Made by Walking Almost 20 years ago, I started a blog called WalkingRandomly following a pub conversation with Matt Haworth. Matt was leaving The University of Manchester, where we both worke...
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Mike Croucher @walkingrandomly.bsky.social · 24/06/2026
Them: OMG Mike! You look terrible. So tired. Are you OK? Me: I'm fine! I just got a 4K webcam
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Ketan Joshi @ketanjoshi.co · 03/06/2026
This one hurts. I've really enjoyed Tim's work in the past But let's just be totally bloody clear here: every single person using a text fabrication engine to replace their work, research and writing skills: THIS MOMENT IS COMING FOR YOU TOO It is truly just a matter of time. It's inevitable ⏱️
I recently wrote a piece critical of Matt Chun's essay about the shootings at Bondi
Beach. In it, I attributed a quote to him that were not his words. This was an egregious
mistake and I apologise unreservedly. At his request, I have removed the piece, but I
wanted to make sure everyone here was aware of the error.
I really have no excuse other than my own carelessness and a degree of hubris. I used
AI to search for other examples Of how people had responded to Chun's piece, asking
for links and key quotes. It brought up mainly mainstream pieces from Australia but
some Reddit links, and links from overseas sources. I also asked it to summarise the
piece, not in lieu of reading it but in addition. (I had first read it after reading Guy
Rundle's comments about it.) I clicked through on some of the links. I noted down the
quote, wrote a drop in paragraph using it, and added it to the draft at some point. That
I didn't double-check it or recognise it as not part of the original essay is entirely on
me.
So, yes, this is a case Of AI generating a false quote, but the issue is that I should've
been far more careful in checking it and I am deeply sorry, and embarrassed, that I
didn't do it to the extent necessary. Obviously, we are all aware of this issue of falseSo, yes, this is a case of AI generating a false quote, but the issue is that I should've
been far more careful in checking it and I am deeply sorry, and embarrassed, that I
didn't do it to the extent necessary. Obviously, we are all aware of this issue of false
quotes and attributions with AI, but I had enough hubris to think such a thing would
never get past me. It did.
When Matt Chun first contacted me, I initially responded by saying "It came from a
email discussion with people I know and generally trust and I should've been much
more careful." I was pretty sure I knew what the issue was, but this was a fob to give
me time to think about it. Obviously, I should've just said, let me look into it, but I
actually thought that sounded worse, more like a fob than the false reason I gave.
That's not an excuse, just the thought process in the moment. I also apologise for this.
I will leave further discussion of the the problems with using AI in this way for later.
For now, I really want to make clear the error and to apologise publicly to Matt Chun
for the false quote and the initially misleading response. As I say, I have no excuse
beyond my own carelessness and hubris.
B 987x686px, WMatt Chun
Subscribe
@mattchun
Update: After initially lying to me about the source Of the misattribution, Tim Dunlop
has now admitted that he used Al to write his article, which generated the entirely
false paragraph attributed to me as a 'quote'.
The false 'quote' is central to Dunlop's article, and essential to his criticism of me. It's
the basis from which he develops a number of defamatory imputations, and from
which he invites his readership to conclude that I am frankly, grotesque'.
Dunlop has now removed the article and has posted a public apology. However, the
article was published for 30 days, during which time it enjoyed wide engagement and
shares. It drew a significant number of comments by admiring readers who found his
misinformation convincing. The article also remains in the inboxes of his many
subscribers.
It appears that Dunlop is a journalist for national mastheads, a published author, and
a •sought-after' public speaker with a PhD in 'political philosophy and
communication'. He has a large audience including hundreds of paid subscribers, and
is currently '#45 rising in world politics' on this platform.
@ May 26
Matt Chun
I did not say the words •quoted' below. I've never seen these words before. and they certainly
don't appear in my writing as Tim Dunlop claims. Nevertheless, Dunlop develops a critique of
me based on this complete misattribution. In the comments section of his article, Dunlop is
congratulated as •clear-sighted and thoroughly informed'.
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Mike Croucher @walkingrandomly.bsky.social · 03/06/2026
I'm starting to think about SC26. Any of you guys going and want to meet up for coffee/beer? Maybe do a thing together at a BoF? Joint Demo? Hang out?
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Sung Kim @sungkim.bsky.social · 05/05/2026
MATLAB Agentic Toolkit MathWorks have released the MATLAB Agentic Toolkit which will significantly improve the life of anyone who is using MATLAB and Simulink with agentic AI systems such as Claude Code or OpenAI Codex. Blog: blogs.mathworks.com/matlab/2026/... Repo: github.com/matlab/matla...
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Mike Croucher @walkingrandomly.bsky.social · 30/04/2026
Whatever the problem, doing some squats will probably help.
media.tenor.com
a man in a chair says do your squats in front of framed pictures on the wall
ALT: a man in a chair says do your squats in front of framed pictures on the wall
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Mike Croucher @walkingrandomly.bsky.social · 21/04/2026
MATLAB 2026a has been released. There's a tour of some of the highlights over at The MATLAB Blog blogs.mathworks.com/matlab/2026/...
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Mike Croucher @walkingrandomly.bsky.social · 03/04/2026
It’s about $9 a gallon in the UK.
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Mike Croucher @walkingrandomly.bsky.social · 09/02/2026
Zooming right in, you can see that I am part of a cluster called 'HPC and Supercomputing professionals'. Zooming out, it's fun to see what communities are clustered near us such as 'Ceramic artists and potters'
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Mike Croucher @walkingrandomly.bsky.social · 09/02/2026
Happy Valentines from MATLAB to you. blogs.mathworks.com/matlab/2026/...
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Mike Croucher @walkingrandomly.bsky.social · 05/02/2026
I just bench pressed 120kg for the first time in my life. I’m 48. I’m happy!
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Mike Croucher @walkingrandomly.bsky.social · 30/01/2026
Interesting article on AI Coding Assistants where the author suggests that they are getting worse and that maybe its partially the fault of all the newbies using them leading to bad training data. spectrum.ieee.org/ai-coding-de... What's your experience?
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Ars Technica @arstechnica.com · 29/01/2026
The free AI-powered workspace for scientists has drawn immediate skepticism from researchers who fear the tool will accelerate the already overwhelming flood of low-quality papers into scientific journals.
arstechnica.com
New OpenAI tool renews fears that “AI slop” will overwhelm scientific research
New "Prism" workspace launches just as studies show AI-assisted papers are flooding journals with diminished quality.
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Mike Croucher @walkingrandomly.bsky.social · 08/01/2026
My desktop PC is 5 years old and showing its age. What do you suggest I look at for a new machine for scientific computing? The current specs are - Intel i7-11700 with 32GB RAM - NVIDIA RTX 3070 GPU - 1TB SSD + 1TB HDD disk space
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Mike Croucher @walkingrandomly.bsky.social · 21/12/2025
I caved in and bought an air fryer. So far I am deeply unimpressed. Deeply! Hoping that its because I haven’t figured out how to use it properly yet and not because it was an overrated piece of tat.
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Mike Croucher @walkingrandomly.bsky.social · 13/12/2025
I have done absolutely nothing today! It was glorious and I highly recommend it.
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Mike Croucher @walkingrandomly.bsky.social · 07/12/2025
This article from The Guardian discusses many of my own concerns about AI right now: Artificial intelligence research has a slop problem, academics say: ‘It’s a mess’ www.theguardian.com/technology/2...
theguardian.com
Artificial intelligence research has a slop problem, academics say: ‘It’s a mess’
AI research in question as author claims to have written over 100 papers on AI that one expert calls a ‘disaster’
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Mike Croucher @walkingrandomly.bsky.social · 06/12/2025
My current use for ChatGPT is translating the gen Z slang that my step daughter uses when she texts me
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Mike Croucher @walkingrandomly.bsky.social · 04/12/2025
Needed to do a computer thing so opened my notes file HowToDoThing.md it contained one line: TODO: Write detailed notes about thing. Sometimes I hate lazy, past Mike!
media.tenor.com
homer simpson from the simpsons is driving a car and says d' oh
ALT: homer simpson from the simpsons is driving a car and says d' oh
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Andrew Jones (hpcnotes) @hpcnotes.bsky.social · 01/12/2025
In what is now a solid tradition, the most important post-SC event ... publication of Glenn's SC notes! #HPC #SC25 #supercomputing #HPCignites
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Len @lendot.bsky.social · 17/11/2025
OK, this turned out to be a totally unexpected and really cool restoration technique. Physicists! MATLAB! Transfer film! Laser cutter! www.youtube.com/watch?v=R1vm...
youtube.com
Retouching Made Easy. No, Really!
YouTube video by Baumgartner Restoration
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Mike Croucher @walkingrandomly.bsky.social · 20/11/2025
#SC25 was the best one I’ve ever attended….and not just because I got to meet Thor.
Mike Croucher with Thor
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Anne Koelewijn @drannek.bsky.social · 17/11/2025
Our toolbox got published in the @joss-openjournals.bsky.social!
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Mike Croucher @walkingrandomly.bsky.social · 17/11/2025
If you’re in St Louis for #SC25 I highly recommend going up the arch. Here’s one of the views from the top where you can also see its shadow
The arch at St Louis View from the arch at St Louis
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Mike Croucher @walkingrandomly.bsky.social · 15/11/2025
Have spent most of the day travelling to #SC25 and am just about to start the final leg. Taking off from Atlanta on my way to St Louis
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Mike Croucher @walkingrandomly.bsky.social · 10/11/2025
Are you going to be at #SC25? Want to connect with a large subset of the #HPC community with one click? The #HPC starter pack is what you need! bsky.app/starter-pack...
bsky.app
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Mike Croucher @walkingrandomly.bsky.social · 05/11/2025
MathWorks release MATLAB MCP Core server In the video below you are watching Claude read a file on my local machine and use my local install of MATLAB to analyze it. Claude writes the MATLAB code,puts it on my machine and runs it using my copy of MATLAB Article: blogs.mathworks.com/matlab/2025/...
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 29/10/2025
"We were raised to believe over the decades that machines will outgrow us[, but] automatons are not consuming the globe brilliantly. They are not outsmarting us—they are overfitting on us." Snehamol Joseph & Jeena Joseph (2025) Digital decay: when AI eats its own homework doi.org/10.1007/s001...
Unless AI is kept in check, it will not only eat its own homework but it will also eat its legibility. We will lose the skill to distinguish a composition of a type of work, a deliberate work, against a hybrid work, a piece of work, an argument, fabricated out of past fragments. Audiences will be conditioned to believe that good enough is good enough, until even mediocrity will seem like plenty. Culture will be turned into monocropped and deprived of nutrients. The creative commons will be exhausted. And as is soil when it is overfarmed, once lost, it will not be easily recovered.

Let us not flatter ourselves. It is not that AI will soon surpass us in thinking, it is more likely that it will surpass us in boring. When we leave machines to eat their own homework we are not training a generation of geniuses but beige. The cry is straight: do not confuse abundance with richness, fluency with thought, content with creation. Surprise still matters. Originality is not luxury but lifeline. Unless we defend it, we will drown in competence without creation.
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Steve Eddins @steveeddins.com · 16/10/2025
New blog post: Improved Registration Algorithm for IMREGCORR Substantial improvements for function IMREGCORR, which registers image pairs using similarity, rigid, and translation transformations. #matlab www.steveeddins.com/blog/matlab/...
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Juliette Wade @juliettewade.com · 15/10/2025
Zoom in on that Venn diagram.
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Mike Croucher @walkingrandomly.bsky.social · 14/10/2025
Don't do this.... matlab -nodisplay -nosplash -nodesktop -r "myscript;exit" Do this matlab -nodisplay -batch myscript Here's why blogs.mathworks.com/matlab/2025/... #MATLAB #HPC
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Mike Croucher @walkingrandomly.bsky.social · 10/10/2025
I feel these vibes very strongly. I use LLMs all the time and understand them in much more detail than most of the people who insist I should use them more! When I point out weaknesses of the tech, I get accused of being an anti tech luddite who doesn’t get it.
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Mike Croucher @walkingrandomly.bsky.social · 10/10/2025
I held a Samsung Galaxy Z Fold 7 recently and it was the first time in years that I had genuine gadget lust. I really wanted it! I moved from android to iPhone a few years ago solely for improved battery life but this almost made me go back….almost.
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Mike Croucher @walkingrandomly.bsky.social · 03/10/2025
Is anyone doing computational research without any AI component?
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Mike Croucher @walkingrandomly.bsky.social · 02/10/2025
The latest #MATLAB Pick of The Week is k-wave. An open source MATLAB Community Toolbox designed for time domain acoustic and ultrasound simulations in complex and tissue-realistic media. The associated paper has been cited over 2600 times blogs.mathworks.com/pick/2025/09...
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Merriam-Webster @merriam-webster.com · 01/10/2025
We are thrilled to announce that our NEW Large Language Model will be released on 11.18.25.
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Daniel S. Katz @danielskatz.org · 30/09/2025
In a discussion with publishers this morning, we were reminded of this Springer Nature data showing that 19% - 66% of paper authors develop new software as part of their research, where the 19% is more or less for all fields, and the 66% is for computational science. blogs.lse.ac.uk/impactofsoci...
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Mike Croucher @walkingrandomly.bsky.social · 24/09/2025
In my day, '42' was the number we'd try to force into everything. Want to see a random number generator? '42' Choose a number between 1 and 100? '42' Now it seems to be 67 and I have no idea why!
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UoM Research IT @uomresearchit.bsky.social · 19/09/2025
Looking for ways to improve your #Matlab code? Have a chat with our Research Software Engineers! They can help with a wide variety of research software and help you get the most out of it.
buff.ly
From 80 days to 4 minutes: Supercharging MATLAB
Research IT recently hosted Mike Croucher from MathWorks for a workshop demonstrating how MATLAB can go from sluggish to lightning-fast. Through smart code optimisations and GPU acceleration, Mike…
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Peter Zeidman @corticalpete.bsky.social · 16/09/2025
A birthday is a good time to reflect! To mark SPM @ 30, this month's issue of Cerebral Cortex features deeply insightful commentaries on neuroimaging analysis from Ed Bullmore, Peter Bandettini, Peter Fox, Pedro Valdes-Sosa, Klaas Enno Stephan, Viktor Jirsa, et al [1/2] academic.oup.com/cercor/issue
academic.oup.com
Issues | Cerebral Cortex | Oxford Academic
Publishes papers on the development, organization, plasticity, and function of the cerebral cortex, including the hippocampus.
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Mike Croucher @walkingrandomly.bsky.social · 12/09/2025
Job alert! I know a lot of #HPC people follow me here so if any of you are looking for a new gig, maybe this one at MathWorks is for you. lnkd.in/efa8iPkZ You don't even need to know any MATLAB...we can teach you that. Your HPC/parallel chops are what we are looking for.
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Mike Croucher @walkingrandomly.bsky.social · 09/09/2025
Sowjanya Pandruju from AWS discussing the different levels of the AI DevOps spectrum at #RSECon25
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Mike Croucher @walkingrandomly.bsky.social · 09/09/2025
And so it begins. #RSEcon25
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Mike Croucher @walkingrandomly.bsky.social · 07/09/2025
I’m on my way!
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Mike Croucher @walkingrandomly.bsky.social · 03/09/2025
I made a video for MATLAB users who want to take their first steps into getting code up on GitHub. Includes how to let anyone in the world run your code -- even without a MATLAB license. www.youtube.com/watch?v=9rRD...
youtube.com
Take Your MATLAB Code to GitHub
YouTube video by MATLAB
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Mike Croucher @walkingrandomly.bsky.social · 01/09/2025
I deliver High Performance Computing workshops in MATLAB for free! If you are at a University in the UK and would like a similar session to the one Manchester had, let's talk.
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Mike Croucher @walkingrandomly.bsky.social · 28/08/2025
“Knowing when to use AI turns out to be a form of wisdom, not just technical knowledge.” www.oneusefulthing.org/p/15-times-t...
oneusefulthing.org
15 Times to use AI, and 5 Not to
Notes on the Practical Wisdom of AI Use
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Mike Croucher @walkingrandomly.bsky.social · 27/08/2025
The MATLAB documentation is pretty great and now we've sprinkled a little (but not too much!) AI over it. The result works well! Check out the details in my latest article blogs.mathworks.com/matlab/2025/...
Screenshot of the AI generate portion of a query to MATLAB's documentation
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