Mike Deutsch
@mdeutschmtl.bsky.social
Edu tinkerer and connector. Math & CS pedagogy. @mdeutschmtl here and elsewhere. Montréal.
"It's largely naive nonsense to imagine that you can develop software *once*, then never revisit it again." So are LLMs helping the industry, or creating a long-term maintenance morass? Most studies don't measure the indicators that will tell us. By @modernswe.bsky.social: youtu.be/b9EbCb5A408?...
We Studied 150 Developers Using AI (Here’s What's Actually Changed...)
YouTube video by Modern Software Engineering
youtu.be
February 12, 2026 at 7:49 PM
"It's largely naive nonsense to imagine that you can develop software *once*, then never revisit it again." So are LLMs helping the industry, or creating a long-term maintenance morass? Most studies don't measure the indicators that will tell us. By @modernswe.bsky.social: youtu.be/b9EbCb5A408?...
The cherry on top is that of *course* @deadder.bsky.social got Gordie Howe's number & gloves & skates right. It's the details. 😉🇨🇦
February 11, 2026 at 4:21 PM
The cherry on top is that of *course* @deadder.bsky.social got Gordie Howe's number & gloves & skates right. It's the details. 😉🇨🇦
Reposted by Mike Deutsch
Feel like doing some math this weekend?
The Math Routine Collaborative is meeting this Sunday, February 15, at 4:00 ET. Join us as @alisonmellomath.bsky.social facilitates the True or False routine!
Register at www.strongermath.com/mrc to collaborate with us!
The Math Routine Collaborative is meeting this Sunday, February 15, at 4:00 ET. Join us as @alisonmellomath.bsky.social facilitates the True or False routine!
Register at www.strongermath.com/mrc to collaborate with us!
February 9, 2026 at 4:56 PM
Feel like doing some math this weekend?
The Math Routine Collaborative is meeting this Sunday, February 15, at 4:00 ET. Join us as @alisonmellomath.bsky.social facilitates the True or False routine!
Register at www.strongermath.com/mrc to collaborate with us!
The Math Routine Collaborative is meeting this Sunday, February 15, at 4:00 ET. Join us as @alisonmellomath.bsky.social facilitates the True or False routine!
Register at www.strongermath.com/mrc to collaborate with us!
Reposted by Mike Deutsch
Can't say it enough, if you are going to build ANYTHING, you are going to be criticized much more than you will be praised. Do not be deterred. Build what you want to exist. Find your people and seek their counsel. Keep it moving.
February 7, 2026 at 5:10 PM
Can't say it enough, if you are going to build ANYTHING, you are going to be criticized much more than you will be praised. Do not be deterred. Build what you want to exist. Find your people and seek their counsel. Keep it moving.
Another thoughtful angle on #vibecoding and the gaps it leaves that *somebody* eventually has to cover.
This time: open source contributions. 🧵:
This time: open source contributions. 🧵:
Here is one of the dumbest things about vibe coding that I don't see a lot of people talking about
Imagine you're an open source maintainer and someone opens up a pull request against your repository that they vibe coded. They may or may not tell you they vibe coded it; it doesn't really matter… 🧵
Imagine you're an open source maintainer and someone opens up a pull request against your repository that they vibe coded. They may or may not tell you they vibe coded it; it doesn't really matter… 🧵
February 8, 2026 at 5:11 AM
Another thoughtful angle on #vibecoding and the gaps it leaves that *somebody* eventually has to cover.
This time: open source contributions. 🧵:
This time: open source contributions. 🧵:
I’m behind on this episode, but this bit of transcript is pretty standard. As is often the case, the “tolerance for ambiguity” (per Nate) is… bafflingly selective.
Students expected to wait for years for it all to make sense, but a single problem that hasn’t been fully pre-digested? Never. 🤪
Students expected to wait for years for it all to make sense, but a single problem that hasn’t been fully pre-digested? Never. 🤪
I listen to these podcasts because I really do find learning sciences research interesting… but, while I think this is super vivid framing, I have two arguments against thinking of teaching and learning in this way… (🧵 1/8)
podcasts.apple.com/us/podcast/c...
podcasts.apple.com/us/podcast/c...
February 8, 2026 at 3:07 AM
I’m behind on this episode, but this bit of transcript is pretty standard. As is often the case, the “tolerance for ambiguity” (per Nate) is… bafflingly selective.
Students expected to wait for years for it all to make sense, but a single problem that hasn’t been fully pre-digested? Never. 🤪
Students expected to wait for years for it all to make sense, but a single problem that hasn’t been fully pre-digested? Never. 🤪
Reposted by Mike Deutsch
We don’t need to keep engaging in false binaries: we don’t have to use living conditions as excuses for not teaching. Inquiry lessons are not antithetical to teaching kids facts. And expecting a tolerance for ambiguity isn’t a reason to deny kids meaningful connections between school & life (8/8 /🧵)
February 7, 2026 at 10:40 PM
We don’t need to keep engaging in false binaries: we don’t have to use living conditions as excuses for not teaching. Inquiry lessons are not antithetical to teaching kids facts. And expecting a tolerance for ambiguity isn’t a reason to deny kids meaningful connections between school & life (8/8 /🧵)
I didn’t know this wrinkle either, but…
“Cognitive offloading” is nothing new. We’ve been pawning our brain power off on tools and OTHER PEOPLE for as long as we’ve been around. Not surprising, then, that it’s such a reflex when new inventions come along.
“Cognitive offloading” is nothing new. We’ve been pawning our brain power off on tools and OTHER PEOPLE for as long as we’ve been around. Not surprising, then, that it’s such a reflex when new inventions come along.
(holy hell I was slightly shocked to learn in that 2021 paper that "ancient Romans trained slaves to remember legal information so that they could be called on in a public debate". The history of human knowledge is always also the history of oppression. ANYWAY, BACK TO NERD STUFF)
February 7, 2026 at 10:46 PM
I didn’t know this wrinkle either, but…
“Cognitive offloading” is nothing new. We’ve been pawning our brain power off on tools and OTHER PEOPLE for as long as we’ve been around. Not surprising, then, that it’s such a reflex when new inventions come along.
“Cognitive offloading” is nothing new. We’ve been pawning our brain power off on tools and OTHER PEOPLE for as long as we’ve been around. Not surprising, then, that it’s such a reflex when new inventions come along.
Reposted by Mike Deutsch
We put on an all-Yiddish community production of fiddler on the roof in Philadelphia and cast member and local artist Sofie Rose Seymour created the most amazing show poster that ever was
February 6, 2026 at 5:10 AM
We put on an all-Yiddish community production of fiddler on the roof in Philadelphia and cast member and local artist Sofie Rose Seymour created the most amazing show poster that ever was
Dentist appointment today. At 2:30.
That should be the "13th floor" of dentistry.
That should be the "13th floor" of dentistry.
February 5, 2026 at 5:22 PM
Dentist appointment today. At 2:30.
That should be the "13th floor" of dentistry.
That should be the "13th floor" of dentistry.
Reposted by Mike Deutsch
There is another consultation happening, submissions are open:
www.canadianlawyermag.com/practice-are...
www.canadianlawyermag.com/practice-are...
People’s Consultation on AI offers alternative to 30-day public consultation on national AI strategy
New NGO initiative opens discussion on AI impacts and how Canada should govern it
www.canadianlawyermag.com
February 5, 2026 at 3:04 AM
There is another consultation happening, submissions are open:
www.canadianlawyermag.com/practice-are...
www.canadianlawyermag.com/practice-are...
Another spot-on #instructionalcoaching vignette today by Adam Kohlbeck and Sarah Cottinghatt. Asking "So, how'd that go?" isn't useful. Focus on the thing *you* want to examine together. The coach has that prerogative. 🍎 cognitivecoaching.substack.com/p/coaching-c...
Coaching Cut #40 AVOID the Vague Opener...
Coaching Cuts: Bite-sized tips for better coaching
cognitivecoaching.substack.com
February 5, 2026 at 2:14 PM
Another spot-on #instructionalcoaching vignette today by Adam Kohlbeck and Sarah Cottinghatt. Asking "So, how'd that go?" isn't useful. Focus on the thing *you* want to examine together. The coach has that prerogative. 🍎 cognitivecoaching.substack.com/p/coaching-c...
Ooh, this @booch.com clip ends on a cliffhanger… heading to the full video to see where he sees AI & software engineering going…
Ready to have my ideas stretched.
Ready to have my ideas stretched.
What if we're actually in the middle of the third golden age of software engineering? This is what Grady Booch (@booch.com) sees happening. If you are anxious about the state of the industry, you want to watch/listen to Grady's longer-term perspective:
www.youtube.com/watch?v=OfMA...
(cont'd)
www.youtube.com/watch?v=OfMA...
(cont'd)
February 4, 2026 at 9:35 PM
Ooh, this @booch.com clip ends on a cliffhanger… heading to the full video to see where he sees AI & software engineering going…
Ready to have my ideas stretched.
Ready to have my ideas stretched.
Reposted by Mike Deutsch
This is tremendous. Take the time to watch it.
Highlighting the speaker who stood in front of the Surprise mayor and told him to consider what the Mayor of Ohrdruf must’ve thought before he died by suicide: “He might have thought ‘how is this my fault I had no jurisdiction over this’ maybe he said ‘this site was not subject to local zoning.’”
February 4, 2026 at 1:48 PM
This is tremendous. Take the time to watch it.
Reposted by Mike Deutsch
somebody secretly fund me to do this observation at tech conferences please it would be so funny/bad
Are female economists treated differently than males in academic seminars?
These authors wanted to know whether gender shapes how scholars are treated when presenting research.
So they built a massive dataset of 2,000+ economics seminars, job talks, and conference presentations from 2019–2023...
These authors wanted to know whether gender shapes how scholars are treated when presenting research.
So they built a massive dataset of 2,000+ economics seminars, job talks, and conference presentations from 2019–2023...
February 3, 2026 at 11:40 PM
somebody secretly fund me to do this observation at tech conferences please it would be so funny/bad
Reposted by Mike Deutsch
These are exactly the type of questions we should ask in response to people who push such clearly ideological educational agendas.
Overall, who do the policies serve? And who might be left out?
Overall, who do the policies serve? And who might be left out?
Listened to this ep and had similar thoughts — great thread.
I always wonder, *who* gets to pivot from carrying out prescribed steps to having “complexity” and their own ideas? And *when* does that get to happen? And why is it not *everyone*, in real moments, beginning in childhood?
I always wonder, *who* gets to pivot from carrying out prescribed steps to having “complexity” and their own ideas? And *when* does that get to happen? And why is it not *everyone*, in real moments, beginning in childhood?
February 4, 2026 at 1:25 AM
These are exactly the type of questions we should ask in response to people who push such clearly ideological educational agendas.
Overall, who do the policies serve? And who might be left out?
Overall, who do the policies serve? And who might be left out?
Apparently when you violate a parking sign in Montreal, they sometimes... tow your car to a legal spot a few blocks away?!
That's so... kind?!
I'm befuddled... and many parking-ticket-dollars poorer ... but still in possession of my car. Huh. I think I'll take it. Bravo #montreal.
That's so... kind?!
I'm befuddled... and many parking-ticket-dollars poorer ... but still in possession of my car. Huh. I think I'll take it. Bravo #montreal.
February 2, 2026 at 4:27 PM
Apparently when you violate a parking sign in Montreal, they sometimes... tow your car to a legal spot a few blocks away?!
That's so... kind?!
I'm befuddled... and many parking-ticket-dollars poorer ... but still in possession of my car. Huh. I think I'll take it. Bravo #montreal.
That's so... kind?!
I'm befuddled... and many parking-ticket-dollars poorer ... but still in possession of my car. Huh. I think I'll take it. Bravo #montreal.
Reposted by Mike Deutsch
And his advice on how
To counter ICE’s
Tactical psychological
WARFARE
In Minneapolis
And coming to a city
Near you
SOON
Time to start your shift
From reaction
To planning
Prep
&
FIGHTING
#Mm
To counter ICE’s
Tactical psychological
WARFARE
In Minneapolis
And coming to a city
Near you
SOON
Time to start your shift
From reaction
To planning
Prep
&
FIGHTING
#Mm
January 31, 2026 at 10:02 PM
And his advice on how
To counter ICE’s
Tactical psychological
WARFARE
In Minneapolis
And coming to a city
Near you
SOON
Time to start your shift
From reaction
To planning
Prep
&
FIGHTING
#Mm
To counter ICE’s
Tactical psychological
WARFARE
In Minneapolis
And coming to a city
Near you
SOON
Time to start your shift
From reaction
To planning
Prep
&
FIGHTING
#Mm
Reposted by Mike Deutsch
Reposted by Mike Deutsch
When they say Me Too "went too far," they mean "got too close."
January 31, 2026 at 4:25 PM
When they say Me Too "went too far," they mean "got too close."
Reposted by Mike Deutsch
Help MN and maybe win these mittens! I’ll draw a name 2/1, so get me your name by 7pm central tomorrow.
Every $5 you give to mutual aid and every phone call to your reps is an entry. Email a pic of your receipt/call to mplsAngryMittens@proton.me
Every $5 you give to mutual aid and every phone call to your reps is an entry. Email a pic of your receipt/call to mplsAngryMittens@proton.me
January 31, 2026 at 12:22 PM
Help MN and maybe win these mittens! I’ll draw a name 2/1, so get me your name by 7pm central tomorrow.
Every $5 you give to mutual aid and every phone call to your reps is an entry. Email a pic of your receipt/call to mplsAngryMittens@proton.me
Every $5 you give to mutual aid and every phone call to your reps is an entry. Email a pic of your receipt/call to mplsAngryMittens@proton.me
Reposted by Mike Deutsch
Reposted by Mike Deutsch
A new study from Anthropic finds that gains in coding efficiency when relying on AI assistance did did not meet statistical significance; AI use noticeably degraded programmers’ understanding of what they were doing. Incredible.
The latest from Anthropic: using Anthropic's products makes you worse at your job
How AI assistance impacts the formation of coding skills
Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
www.anthropic.com
January 30, 2026 at 11:47 PM
A new study from Anthropic finds that gains in coding efficiency when relying on AI assistance did did not meet statistical significance; AI use noticeably degraded programmers’ understanding of what they were doing. Incredible.
Reposted by Mike Deutsch
Square root of two… on a baseball field. ⚾ Math is everywhere if we’re paying attention.
🎧 shorturl.at/h1Bgb
👀 youtu.be/OlN2qAY2kC0
New episode with Alex Romero @tilefarmer is out today.
#MathChat #STEM
🎧 shorturl.at/h1Bgb
👀 youtu.be/OlN2qAY2kC0
New episode with Alex Romero @tilefarmer is out today.
#MathChat #STEM
January 30, 2026 at 12:25 AM
Square root of two… on a baseball field. ⚾ Math is everywhere if we’re paying attention.
🎧 shorturl.at/h1Bgb
👀 youtu.be/OlN2qAY2kC0
New episode with Alex Romero @tilefarmer is out today.
#MathChat #STEM
🎧 shorturl.at/h1Bgb
👀 youtu.be/OlN2qAY2kC0
New episode with Alex Romero @tilefarmer is out today.
#MathChat #STEM