Yannick Grenzinger
@yannick.grenzinger.com
Product engineer & manager. Engineering Manager @ Payfit. Father of triplets.
Love #psychology, #UX, #product, #DDD and software development in general.
Love #psychology, #UX, #product, #DDD and software development in general.
Reposted by Yannick Grenzinger
Reductionism can be wrong, but actionable.
Complexity can be right, but paralyzing.
cutlefish.substack.com/p/tbm-389-ov...
Complexity can be right, but paralyzing.
cutlefish.substack.com/p/tbm-389-ov...
TBM 389: Overthinker!
From a young age, being accused of “overcomplicating” or “overthinking” things felt like a dismissal of who I was.
cutlefish.substack.com
November 16, 2025 at 11:20 AM
Reductionism can be wrong, but actionable.
Complexity can be right, but paralyzing.
cutlefish.substack.com/p/tbm-389-ov...
Complexity can be right, but paralyzing.
cutlefish.substack.com/p/tbm-389-ov...
The gap between AI vendor (or tech influencer or devrel) that sell you that you can now just be an AI manager doing the work for you ...
And the unmaintanable code that AI mostly generate
is really interesting and tells us a lot why software cost so much at the end ...
And the unmaintanable code that AI mostly generate
is really interesting and tells us a lot why software cost so much at the end ...
November 11, 2025 at 9:07 AM
The gap between AI vendor (or tech influencer or devrel) that sell you that you can now just be an AI manager doing the work for you ...
And the unmaintanable code that AI mostly generate
is really interesting and tells us a lot why software cost so much at the end ...
And the unmaintanable code that AI mostly generate
is really interesting and tells us a lot why software cost so much at the end ...
I think I am a simple man I love to build system that just works
November 7, 2025 at 7:56 PM
I think I am a simple man I love to build system that just works
If you booted up a super-smart AI in ancient Greece, fed it all human knowledge, and asked it how to land on the moon, it would respond “You can’t land on the moon. The moon is a god floating in the sky.” How would you get it to realize the moon is actually a big rock?
November 7, 2025 at 4:27 PM
If you booted up a super-smart AI in ancient Greece, fed it all human knowledge, and asked it how to land on the moon, it would respond “You can’t land on the moon. The moon is a god floating in the sky.” How would you get it to realize the moon is actually a big rock?
Why aren't smart people happier? www.theseedsofscience.pub/p/why-arent-...
Why aren't smart people happier?
Author: Adam Mastroianni
www.theseedsofscience.pub
November 6, 2025 at 11:32 AM
Why aren't smart people happier? www.theseedsofscience.pub/p/why-arent-...
I am really bored listening to Conway's law quote.
It's like saying again and again that water is wet at some point.
The next question is now: why the software boat keeps sinking ?
It's like saying again and again that water is wet at some point.
The next question is now: why the software boat keeps sinking ?
November 6, 2025 at 10:32 AM
I am really bored listening to Conway's law quote.
It's like saying again and again that water is wet at some point.
The next question is now: why the software boat keeps sinking ?
It's like saying again and again that water is wet at some point.
The next question is now: why the software boat keeps sinking ?
China is the future in so many ways
October 30, 2025 at 6:47 AM
China is the future in so many ways
Reposted by Yannick Grenzinger
China has passed a new law mandating that anyone creating social media content on sensitive topics like medicine, law, education or finance must hold formal qualifications such as a college degree in those fields.
Imagine an internet where people actually had to know what they were talking about.
Imagine an internet where people actually had to know what they were talking about.
China tightens the screws: Influencers now need degrees to speak on finance, health, law | Today News
China has rolled out a new law requiring influencers to prove their qualifications before posting about topics like finance, health or law. While officials call it a fight against misinformation, crit...
www.livemint.com
October 30, 2025 at 2:30 AM
China has passed a new law mandating that anyone creating social media content on sensitive topics like medicine, law, education or finance must hold formal qualifications such as a college degree in those fields.
Imagine an internet where people actually had to know what they were talking about.
Imagine an internet where people actually had to know what they were talking about.
The Psychology Of Trust In AI: A Guide To Measuring And Designing For User Confidence www.smashingmagazine.com/2025/09/psyc...
The Psychology Of Trust In AI: A Guide To Measuring And Designing For User Confidence — Smashing Magazine
With digital products moving to incorporate generative and agentic AI at an increasingly frequent rate, trust has become the invisible user interface. When it works, interactions feel seamless. When i...
www.smashingmagazine.com
October 29, 2025 at 6:35 PM
The Psychology Of Trust In AI: A Guide To Measuring And Designing For User Confidence www.smashingmagazine.com/2025/09/psyc...
"The idea is that ChatGPT will be your agent, but in reality you are ChatGPT's agent" www.anildash.com//2025/10/22/...
ChatGPT's Atlas: The Browser That's Anti-Web - Anil Dash
A blog about making culture. Since 1999.
www.anildash.com
October 28, 2025 at 8:01 PM
"The idea is that ChatGPT will be your agent, but in reality you are ChatGPT's agent" www.anildash.com//2025/10/22/...
Reposted by Yannick Grenzinger
Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.
June 19, 2025 at 11:21 AM
Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.
Reposted by Yannick Grenzinger
From the same dev: “it’s also that I cannot see management being concerned solving the information visibility that keeps slowing us down.
We’re rolling out AI coding tools for devs but no one thinks about the org silos that slow us down 10x more than any coding use case.”
We’re rolling out AI coding tools for devs but no one thinks about the org silos that slow us down 10x more than any coding use case.”
October 17, 2025 at 4:58 PM
From the same dev: “it’s also that I cannot see management being concerned solving the information visibility that keeps slowing us down.
We’re rolling out AI coding tools for devs but no one thinks about the org silos that slow us down 10x more than any coding use case.”
We’re rolling out AI coding tools for devs but no one thinks about the org silos that slow us down 10x more than any coding use case.”
The LLM and agentic coding revolution allows anyone to start anything.
But...
It doesn't fix (so far) to maintain on the long term this explosion of codebase and lines of code
But...
It doesn't fix (so far) to maintain on the long term this explosion of codebase and lines of code
August 24, 2025 at 7:59 AM
The LLM and agentic coding revolution allows anyone to start anything.
But...
It doesn't fix (so far) to maintain on the long term this explosion of codebase and lines of code
But...
It doesn't fix (so far) to maintain on the long term this explosion of codebase and lines of code
Reposted by Yannick Grenzinger
Robot meets bollard. Nothing beats the #WorldBollardAssociation
August 23, 2025 at 10:55 AM
Robot meets bollard. Nothing beats the #WorldBollardAssociation
"Don’t treat LLM coding agents as highly capable superintelligent systems. Treat them as lazy, intoxicated robots"
lnkd.in/eJQhMqVF
But fortunately, some have the solution: humans will review the thousands of lines of code generated by LLMs. /s
lnkd.in/eJQhMqVF
But fortunately, some have the solution: humans will review the thousands of lines of code generated by LLMs. /s
LinkedIn
This link will take you to a page that’s not on LinkedIn
lnkd.in
August 18, 2025 at 2:00 PM
"Don’t treat LLM coding agents as highly capable superintelligent systems. Treat them as lazy, intoxicated robots"
lnkd.in/eJQhMqVF
But fortunately, some have the solution: humans will review the thousands of lines of code generated by LLMs. /s
lnkd.in/eJQhMqVF
But fortunately, some have the solution: humans will review the thousands of lines of code generated by LLMs. /s
"If you learn one thing, learn that shipping is all that matters. If you learn two things, learn that inspiring people is the best way to ship"
thechrisperry.substack.com/p/being-a-go...
thechrisperry.substack.com/p/being-a-go...
Being a good PM at Google
Things I've learned over 12 years building products you love
thechrisperry.substack.com
August 17, 2025 at 3:10 PM
"If you learn one thing, learn that shipping is all that matters. If you learn two things, learn that inspiring people is the best way to ship"
thechrisperry.substack.com/p/being-a-go...
thechrisperry.substack.com/p/being-a-go...
About Vibe Coding and Tool being better than Agent, a must listen conf to separate good usage of LLMs vs the hype www.youtube.com/watch?v=1WC8...
The Role of the Human Brain in Programming
YouTube video by Val Town
www.youtube.com
July 31, 2025 at 9:46 AM
About Vibe Coding and Tool being better than Agent, a must listen conf to separate good usage of LLMs vs the hype www.youtube.com/watch?v=1WC8...
À quoi sert la Gen AI
June 21, 2025 at 7:35 AM
À quoi sert la Gen AI
Reposted by Yannick Grenzinger
The reason you don't have time to write unit tests is because you didn't write unit tests.
June 14, 2025 at 4:12 AM
The reason you don't have time to write unit tests is because you didn't write unit tests.
"The technical barriers that once separated amateurs from professionals are rapidly dissolving. Anyone with access to AI tools can now produce work that, at least superficially, resembles professional output." notsocommonthoughts.com/blog/ai-and-...
June 2, 2025 at 12:09 PM
"The technical barriers that once separated amateurs from professionals are rapidly dissolving. Anyone with access to AI tools can now produce work that, at least superficially, resembles professional output." notsocommonthoughts.com/blog/ai-and-...
Des experts d'home assistant ici qui pourrait m'expliquer mon diagramme de consommation d'énergie ?
Je ne comprends pas que ce soit aussi périodique et pas plus continue 🤔
Pour info, je mélange des capteurs tuya en wifi et des prises connectées ikea en zigbee sur zigbee2mqtt.
Je ne comprends pas que ce soit aussi périodique et pas plus continue 🤔
Pour info, je mélange des capteurs tuya en wifi et des prises connectées ikea en zigbee sur zigbee2mqtt.
June 1, 2025 at 4:27 PM
Des experts d'home assistant ici qui pourrait m'expliquer mon diagramme de consommation d'énergie ?
Je ne comprends pas que ce soit aussi périodique et pas plus continue 🤔
Pour info, je mélange des capteurs tuya en wifi et des prises connectées ikea en zigbee sur zigbee2mqtt.
Je ne comprends pas que ce soit aussi périodique et pas plus continue 🤔
Pour info, je mélange des capteurs tuya en wifi et des prises connectées ikea en zigbee sur zigbee2mqtt.
Reposted by Yannick Grenzinger
how it sounds arguing with die hard capitalists.
May 31, 2025 at 12:07 AM
how it sounds arguing with die hard capitalists.
Les banques traditionnelles comme la caisse d'épargne sont larguées :(
17€ pour une carte que tu as gratuitement n'importe où ailleurs ...
Et ce genre de blague le week end:
17€ pour une carte que tu as gratuitement n'importe où ailleurs ...
Et ce genre de blague le week end:
May 31, 2025 at 3:01 PM
Les banques traditionnelles comme la caisse d'épargne sont larguées :(
17€ pour une carte que tu as gratuitement n'importe où ailleurs ...
Et ce genre de blague le week end:
17€ pour une carte que tu as gratuitement n'importe où ailleurs ...
Et ce genre de blague le week end:
"If the CEO of a soda company declared that soda-making technology is getting so good it’s going to ruin the global economy, you’d be forgiven for thinking that person is either lying or fully detached from reality"
edition.cnn.com/2025/05/30/b...
edition.cnn.com/2025/05/30/b...
The ‘white-collar bloodbath’ is all part of the AI hype machine | CNN Business
If the CEO of a soda company declared that soda-making technology is getting so good it’s going to ruin the global economy, you’d be forgiven for thinking that person is either lying or fully detached...
edition.cnn.com
May 31, 2025 at 1:10 PM
"If the CEO of a soda company declared that soda-making technology is getting so good it’s going to ruin the global economy, you’d be forgiven for thinking that person is either lying or fully detached from reality"
edition.cnn.com/2025/05/30/b...
edition.cnn.com/2025/05/30/b...
340 pages business report about AI www.axios.com/2025/05/30/m...
Q&A with Mary Meeker on the AI revolution
The famed internet analyst turned VC just published her first Trends report since 2019.
www.axios.com
May 31, 2025 at 5:47 AM
340 pages business report about AI www.axios.com/2025/05/30/m...