Where SCM meets data science and AI.
Real-world methods for supply chain and operations management professionals who want to go beyond Excel — with reproducible code, realistic datasets, and techniques you can apply today.
Newest Entries
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Factory Physics: The Laws Your Factory Floor Already Obeys
Throughput, WIP, and cycle time aren’t three dials you can set independently. They’re bound by physics, and ignoring that costs you weeks of lead time.
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S&OP: Everyone Signed Off on the Number. It Was Still Wrong by 8.2%.
A consensus forecast measures agreement, not truth. Here is what a textbook S&OP cycle…
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Does Your Forecast Beat a Sticky Note? The Placebo Test for Demand Planning
Your forecast has exactly one job: beat a sticky note that says ‘same as…
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Factory Physics: The Laws Your Factory Floor Already Obeys
Throughput, WIP, and cycle time aren’t three dials you can set independently. They’re bound by physics, and ignoring that costs you weeks of lead time.
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S&OP: Everyone Signed Off on the Number. It Was Still Wrong by 8.2%.
A consensus forecast measures agreement, not truth. Here is what a textbook S&OP cycle looks like, why the signed-off number still ran 8.2% high, and the four moves that fix it without a full process overhaul.
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Does Your Forecast Beat a Sticky Note? The Placebo Test for Demand Planning
Your forecast has exactly one job: beat a sticky note that says ‘same as last year.’ Most don’t. Here’s the placebo test that proves it.
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GLM-5.2 and the Benchmark Trap: How One Score Becomes Two Headlines
A Chinese open-weight model just topped the leaderboards and undercut GPT-5.5 on price by 7x. Then the benchmark tables started disagreeing with each other.
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The Algorithm and the Skunk Works: It’s Latency, Not Size, That Kills Innovation
Kelly Johnson built jets in a tent in 143 days. Sixty years later Elon Musk landed rockets with almost the same rulebook. Neither copied the other, and the reason rewrites what we think kills innovation.
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Designing Loops That Prompt Your Agents: The Shift From Prompts to Loops
A plain-English recap of Ray Amjad’s video on the prompts-to-loops shift: what a loop actually is, how inner and outer loops fit together, and how to keep them from drowning you in slop.
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Sole Source: The $900k Median Problem Your Dual-Source Checkbox Won’t Fix
The dual-source flag teams buy to feel safe moves the median cost of a disruption about $44k. In the wrong direction. The dependency nobody flags moves it $474k.
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The Resilience Ladder: Why the Things You Buy to Feel Safe Don’t Save You
I pulled 3,000 disruptions to find what separates firms that survive a shock from firms that bleed. The dual-source checkbox wasn’t it.