Systems Built on Sand

I’ve spent decades building systems that are: 🛠️ deterministic 🔍 testable 🧱 stable over time The kind that run core financial platforms for 20+ years.

Mar 5, 2026

I’ve spent decades building systems that are: 🛠️ deterministic 🔍 testable 🧱 stable over time The kind that run core financial platforms for 20+ years.

Fout images showing a monitor gradually crumbling into sand

Systems Built On Sand
I’ve spent decades building systems that are:
🛠️ deterministic
🔍 testable
🧱 stable over time
The kind that run core financial platforms for 20+ years.

AI systems are the opposite.
I’ve been using AI to automate parts of my own work.
📈 Week 1: strong results
📉 Week 4: noticeably worse

Nothing changed on my side.
⚙️ Same prompt
🔁 Same workflow
🧰 Same tool

And fixing it?
🛠️ Manual
🎯 Trial and error
⏳ Hours of guesswork

AI systems don’t fail like traditional software.
Traditional software:
💥 crashes
🚨 throws errors
⚡ tells you immediately
AI doesn’t It degrades silently.
⚠️ It erodes. It doesn’t collapse.
🌫️ By the time someone notices, you’ve been running on degraded performance for weeks.

The next phase of AI isn’t more capability. It’s stability.