Alexander Arvidsson (he/him)
@alexanderarvidsson.se
Data Platform MVP, MCT, MCSE. Swedish Power BI UG leader. I make data matter, because only data that matters can inspire change. One third of #KneeDeepinTech
Heading to Barcelona for FabCon Europe without a speaking slot this time. That means more room to listen, explore the city, and chase the conversations that matter.
www.alexanderarvidsson.se/posts/in-bar...
#Community #MicrosoftFabric
www.alexanderarvidsson.se/posts/in-bar...
#Community #MicrosoftFabric
September 29, 2026 at 1:02 PM
Heading to Barcelona for FabCon Europe without a speaking slot this time. That means more room to listen, explore the city, and chase the conversations that matter.
www.alexanderarvidsson.se/posts/in-bar...
#Community #MicrosoftFabric
www.alexanderarvidsson.se/posts/in-bar...
#Community #MicrosoftFabric
We ask AI to think through hard questions for us. Fast, articulate, always available. But what happens when accepting those answers becomes a habit? I'm worried about the cognitive debt we're quietly accumulating.
www.alexanderarvidsson.se/posts/electi...
#Opinion #Ai
www.alexanderarvidsson.se/posts/electi...
#Opinion #Ai
September 22, 2026 at 1:02 PM
We ask AI to think through hard questions for us. Fast, articulate, always available. But what happens when accepting those answers becomes a habit? I'm worried about the cognitive debt we're quietly accumulating.
www.alexanderarvidsson.se/posts/electi...
#Opinion #Ai
www.alexanderarvidsson.se/posts/electi...
#Opinion #Ai
A verbal "yeah, we know" isn't a risk acceptance. It's competing memories waiting for an incident. Aviation figured this out decades ago. The machinery already exists in security work too. We just don't use it properly.
www.arcticdba.se/posts/hand-s...
#DecisionMaking #Communication
www.arcticdba.se/posts/hand-s...
#DecisionMaking #Communication
September 15, 2026 at 9:02 AM
A verbal "yeah, we know" isn't a risk acceptance. It's competing memories waiting for an incident. Aviation figured this out decades ago. The machinery already exists in security work too. We just don't use it properly.
www.arcticdba.se/posts/hand-s...
#DecisionMaking #Communication
www.arcticdba.se/posts/hand-s...
#DecisionMaking #Communication
A misbehaving SQL Server cluster, a legendary colleague's setup, and me absolutely certain it was DNS. Spoiler: it was DNS. But also, it wasn't. Sometimes we see exactly what we expect to see, even when it's completely wrong.
www.arcticdba.se/posts/t-sql-...
#SqlServer
www.arcticdba.se/posts/t-sql-...
#SqlServer
September 8, 2026 at 9:01 AM
A misbehaving SQL Server cluster, a legendary colleague's setup, and me absolutely certain it was DNS. Spoiler: it was DNS. But also, it wasn't. Sometimes we see exactly what we expect to see, even when it's completely wrong.
www.arcticdba.se/posts/t-sql-...
#SqlServer
www.arcticdba.se/posts/t-sql-...
#SqlServer
You found the right metric. Rebuilt the dashboard. Everyone nodded. Nothing changed. The problem isn't your analysis. It's that a lever is not a mechanism. It's a person with reasons to leave things alone.
www.arcticdba.se/posts/pullin...
#DataVisualization #DecisionMaking #Communication
www.arcticdba.se/posts/pullin...
#DataVisualization #DecisionMaking #Communication
September 1, 2026 at 9:01 AM
You found the right metric. Rebuilt the dashboard. Everyone nodded. Nothing changed. The problem isn't your analysis. It's that a lever is not a mechanism. It's a person with reasons to leave things alone.
www.arcticdba.se/posts/pullin...
#DataVisualization #DecisionMaking #Communication
www.arcticdba.se/posts/pullin...
#DataVisualization #DecisionMaking #Communication
Most dashboards are all gauges, no levers. You can stare at the altimeter all you want, but it's not connected to anything. Three simple questions reveal which numbers on your report someone can actually pull.
www.arcticdba.se/posts/findin...
#DataVisualization #DecisionMaking
www.arcticdba.se/posts/findin...
#DataVisualization #DecisionMaking
August 25, 2026 at 9:01 AM
Most dashboards are all gauges, no levers. You can stare at the altimeter all you want, but it's not connected to anything. Three simple questions reveal which numbers on your report someone can actually pull.
www.arcticdba.se/posts/findin...
#DataVisualization #DecisionMaking
www.arcticdba.se/posts/findin...
#DataVisualization #DecisionMaking
Versioning an ontology isn't like versioning an API. There's no compiler to tell you who's right when finance and sales disagree about what "active customer" means. Someone has to own that decision. Here's what that looks like in practice.
www.arcticdba.se/posts/ontolo...
#Ontologies
www.arcticdba.se/posts/ontolo...
#Ontologies
August 18, 2026 at 9:01 AM
Versioning an ontology isn't like versioning an API. There's no compiler to tell you who's right when finance and sales disagree about what "active customer" means. Someone has to own that decision. Here's what that looks like in practice.
www.arcticdba.se/posts/ontolo...
#Ontologies
www.arcticdba.se/posts/ontolo...
#Ontologies
Reposted by Alexander Arvidsson (he/him)
A LinkedIn post argues ontologies are doomed the moment you finish them. Reality keeps changing, so why bother? It's a sharp critique, but I think the diagnosis is wrong. The problem isn't formal modeling. It's scope.
www.arcticdba.se/posts/ontolo...
#Ontologies
www.arcticdba.se/posts/ontolo...
#Ontologies
August 11, 2026 at 9:05 AM
A LinkedIn post argues ontologies are doomed the moment you finish them. Reality keeps changing, so why bother? It's a sharp critique, but I think the diagnosis is wrong. The problem isn't formal modeling. It's scope.
www.arcticdba.se/posts/ontolo...
#Ontologies
www.arcticdba.se/posts/ontolo...
#Ontologies
I said my rituals are for me, not the audience. That's still true. But whatever the waistcoat does to my state doesn't stay contained. It leaks out in how I stand and talk. The audience benefits anyway.
www.arcticdba.se/posts/ritual...
#Speaking
www.arcticdba.se/posts/ritual...
#Speaking
August 4, 2026 at 9:01 AM
I said my rituals are for me, not the audience. That's still true. But whatever the waistcoat does to my state doesn't stay contained. It leaks out in how I stand and talk. The audience benefits anyway.
www.arcticdba.se/posts/ritual...
#Speaking
www.arcticdba.se/posts/ritual...
#Speaking
You added a second model to review the first. Defense in depth, right? Except your reviewer can be talked out of its verdict by a confident paragraph. You didn't add a safeguard. You added a reason to stop checking.
www.arcticdba.se/posts/sycoph...
#Ai #Llms #Security
www.arcticdba.se/posts/sycoph...
#Ai #Llms #Security
July 28, 2026 at 9:01 AM
You added a second model to review the first. Defense in depth, right? Except your reviewer can be talked out of its verdict by a confident paragraph. You didn't add a safeguard. You added a reason to stop checking.
www.arcticdba.se/posts/sycoph...
#Ai #Llms #Security
www.arcticdba.se/posts/sycoph...
#Ai #Llms #Security
My MVP award just renewed for year nine. I should feel celebratory. Instead, I'm thinking about how the community that gave me everything is changing faster than I can describe. We built the library. Someone else started charging admission.
www.arcticdba.se/posts/the-li...
#Mvpbuzz #Community
www.arcticdba.se/posts/the-li...
#Mvpbuzz #Community
July 21, 2026 at 9:01 AM
My MVP award just renewed for year nine. I should feel celebratory. Instead, I'm thinking about how the community that gave me everything is changing faster than I can describe. We built the library. Someone else started charging admission.
www.arcticdba.se/posts/the-li...
#Mvpbuzz #Community
www.arcticdba.se/posts/the-li...
#Mvpbuzz #Community
We built all our AI defenses around catching malicious payloads. But what if the attack is just a reasonable argument? No injection, no jailbreak, nothing to filter. Someone pushes back, the model folds. That's not a bug we planned for.
www.arcticdba.se/posts/regex-...
#Ai #Llms #Security
www.arcticdba.se/posts/regex-...
#Ai #Llms #Security
July 14, 2026 at 9:01 AM
We built all our AI defenses around catching malicious payloads. But what if the attack is just a reasonable argument? No injection, no jailbreak, nothing to filter. Someone pushes back, the model folds. That's not a bug we planned for.
www.arcticdba.se/posts/regex-...
#Ai #Llms #Security
www.arcticdba.se/posts/regex-...
#Ai #Llms #Security
Microsoft Fabric IQ wants to solve a real problem: business knowledge locked inside Power BI datasets can't explain itself to AI agents. The fix? Ontologies. But the tool doesn't resolve the organisational problem. It just makes it visible.
www.arcticdba.se/posts/meanin...
#Models #Bi #Ontologies
www.arcticdba.se/posts/meanin...
#Models #Bi #Ontologies
July 7, 2026 at 9:01 AM
Microsoft Fabric IQ wants to solve a real problem: business knowledge locked inside Power BI datasets can't explain itself to AI agents. The fix? Ontologies. But the tool doesn't resolve the organisational problem. It just makes it visible.
www.arcticdba.se/posts/meanin...
#Models #Bi #Ontologies
www.arcticdba.se/posts/meanin...
#Models #Bi #Ontologies
I spent nearly three decades building dimensional models before realizing they describe how we store facts, not what those facts mean. That distinction matters more than I expected. Here's why ontologies are the missing layer.
www.arcticdba.se/posts/map-is...
#Models #Bi #Ontologies
www.arcticdba.se/posts/map-is...
#Models #Bi #Ontologies
June 30, 2026 at 9:01 AM
I spent nearly three decades building dimensional models before realizing they describe how we store facts, not what those facts mean. That distinction matters more than I expected. Here's why ontologies are the missing layer.
www.arcticdba.se/posts/map-is...
#Models #Bi #Ontologies
www.arcticdba.se/posts/map-is...
#Models #Bi #Ontologies
I asked AI to critique my architecture decision. It said my approach was solid. That wasn't feedback. That was a system trained to agree with me. New research shows this is systematic, and it's changing how we think.
www.arcticdba.se/posts/not-di...
#Llms #Ai #Cognition
www.arcticdba.se/posts/not-di...
#Llms #Ai #Cognition
June 23, 2026 at 9:01 AM
I asked AI to critique my architecture decision. It said my approach was solid. That wasn't feedback. That was a system trained to agree with me. New research shows this is systematic, and it's changing how we think.
www.arcticdba.se/posts/not-di...
#Llms #Ai #Cognition
www.arcticdba.se/posts/not-di...
#Llms #Ai #Cognition
Your AI policy assumes a careful, skeptical user who verifies everything. That person doesn't exist. The real question isn't who on your team is most at risk. It's why your workflow has a single point of failure.
www.arcticdba.se/posts/neurod...
#People #Ai #Llms
www.arcticdba.se/posts/neurod...
#People #Ai #Llms
June 16, 2026 at 9:01 AM
Your AI policy assumes a careful, skeptical user who verifies everything. That person doesn't exist. The real question isn't who on your team is most at risk. It's why your workflow has a single point of failure.
www.arcticdba.se/posts/neurod...
#People #Ai #Llms
www.arcticdba.se/posts/neurod...
#People #Ai #Llms
Cloud work is like assembling a model kit. On-prem was Lego with no instructions. If I had to go back, there's one skill I'd need to completely relearn. It's not what you'd expect.
www.arcticdba.se/posts/t-sql-...
#On-prem #Cloud #Skills #tsql2sday
www.arcticdba.se/posts/t-sql-...
#On-prem #Cloud #Skills #tsql2sday
June 9, 2026 at 9:02 AM
Cloud work is like assembling a model kit. On-prem was Lego with no instructions. If I had to go back, there's one skill I'd need to completely relearn. It's not what you'd expect.
www.arcticdba.se/posts/t-sql-...
#On-prem #Cloud #Skills #tsql2sday
www.arcticdba.se/posts/t-sql-...
#On-prem #Cloud #Skills #tsql2sday
Your brain still runs threat detection software from 200,000 years ago. Turns out it fires every time you open ChatGPT. Not because you're naive. Because the model crosses a threshold your ancestors never saw coming.
www.arcticdba.se/posts/neurod...
#People #Ai #Llms
www.arcticdba.se/posts/neurod...
#People #Ai #Llms
June 2, 2026 at 9:02 AM
Your brain still runs threat detection software from 200,000 years ago. Turns out it fires every time you open ChatGPT. Not because you're naive. Because the model crosses a threshold your ancestors never saw coming.
www.arcticdba.se/posts/neurod...
#People #Ai #Llms
www.arcticdba.se/posts/neurod...
#People #Ai #Llms
I'm heading to Prague for DataPoint, delivering a session I've been refining for years. It's about data literacy, and why the topic keeps getting more urgent. Quick trip, one talk, then home. But if you're there, come say hi.
www.arcticdba.se/posts/data-p...
#Speaking #DataLiteracy
www.arcticdba.se/posts/data-p...
#Speaking #DataLiteracy
May 26, 2026 at 9:01 AM
I'm heading to Prague for DataPoint, delivering a session I've been refining for years. It's about data literacy, and why the topic keeps getting more urgent. Quick trip, one talk, then home. But if you're there, come say hi.
www.arcticdba.se/posts/data-p...
#Speaking #DataLiteracy
www.arcticdba.se/posts/data-p...
#Speaking #DataLiteracy
A customer asked if they could build everything on-prem. Six months ago, that question never came up. Now it's in every feasibility conversation. The uncomfortable truth? We might not have the skills to execute anymore. Here's what I found out.
www.arcticdba.se/posts/whipla...
#Ai #Training
www.arcticdba.se/posts/whipla...
#Ai #Training
May 19, 2026 at 9:01 AM
A customer asked if they could build everything on-prem. Six months ago, that question never came up. Now it's in every feasibility conversation. The uncomfortable truth? We might not have the skills to execute anymore. Here's what I found out.
www.arcticdba.se/posts/whipla...
#Ai #Training
www.arcticdba.se/posts/whipla...
#Ai #Training
Companies are cutting junior roles and calling it efficiency. They're eating their seed corn. Part 2 of my series on AI and junior engineers covers what to do about it: how to mentor, what to teach, and why this moment is actually an opportunity.
www.arcticdba.se/posts/eating...
#Ai #Training
www.arcticdba.se/posts/eating...
#Ai #Training
May 12, 2026 at 9:02 AM
Companies are cutting junior roles and calling it efficiency. They're eating their seed corn. Part 2 of my series on AI and junior engineers covers what to do about it: how to mentor, what to teach, and why this moment is actually an opportunity.
www.arcticdba.se/posts/eating...
#Ai #Training
www.arcticdba.se/posts/eating...
#Ai #Training
73% of people follow a confident AI even when it's wrong. Even when they're motivated and getting feedback. Your junior engineers are walking into production with no override reflex - because we trained them to build, not to judge.
www.arcticdba.se/posts/eating... /
#LLMs #AILiteracy #Training
www.arcticdba.se/posts/eating... /
#LLMs #AILiteracy #Training
May 5, 2026 at 10:01 AM
73% of people follow a confident AI even when it's wrong. Even when they're motivated and getting feedback. Your junior engineers are walking into production with no override reflex - because we trained them to build, not to judge.
www.arcticdba.se/posts/eating... /
#LLMs #AILiteracy #Training
www.arcticdba.se/posts/eating... /
#LLMs #AILiteracy #Training
Most speakers spend weeks building their argument, then hand the ending to whoever raises their hand first. The Q&A trap is real, and it's costing you the one moment your audience will actually remember. Here's how to take it back.
www.arcticdba.se/posts/drawin...
#Speaking
www.arcticdba.se/posts/drawin...
#Speaking
April 28, 2026 at 9:01 AM
Most speakers spend weeks building their argument, then hand the ending to whoever raises their hand first. The Q&A trap is real, and it's costing you the one moment your audience will actually remember. Here's how to take it back.
www.arcticdba.se/posts/drawin...
#Speaking
www.arcticdba.se/posts/drawin...
#Speaking
Newport isn't easy to get to. That's kind of the point. I'm heading back to SQLBits with two sessions: one on why sharp insights die in boardrooms, another on why your Fabric costs aren't what you think they are.
www.arcticdba.se/posts/sqlbit...
#Speaking
www.arcticdba.se/posts/sqlbit...
#Speaking
April 21, 2026 at 9:01 AM
Newport isn't easy to get to. That's kind of the point. I'm heading back to SQLBits with two sessions: one on why sharp insights die in boardrooms, another on why your Fabric costs aren't what you think they are.
www.arcticdba.se/posts/sqlbit...
#Speaking
www.arcticdba.se/posts/sqlbit...
#Speaking