Show HN: I simulated closing the Strait of Hormuz on real oil trade data

Practical AI: Tools, Models & Frameworksllm

What changed

OP here: I created this visualization tool as the byproduct of a supply chain class I taught at Columbia. The pedagogical exercise grew into a full blown visualization and paper about global oil trade. The model: The mechanics are the same as the financial network Eisenberg-Noe: Instead of banks, every country consumes oil interconnected via bilateral trading.

Why it matters

A concrete addition to Practical AI: Tools, Models & Frameworks: it changes what's available to builders today rather than being general commentary.

How it compares

Related prior coverage to compare against:

  • Nvidia, Microsoft, Meta warn against overregulating open-weight models
  • Show HN: Echo – Fable-level results at 1/3 the cost using open-weight models

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