Jason Krijgsman designs and builds data products and data infrastructure for organisations.https://jasonkrijgsman.com/enhttps://jasonkrijgsman.com/writing/intuition-does-not-scale/https://jasonkrijgsman.com/writing/intuition-does-not-scale/Intuition develops through repeated experience and quick feedback. Large systems provide neither, so experts need data and models to see beyond their own part of the system.Wed, 06 May 2026 00:00:00 GMThttps://jasonkrijgsman.com/writing/the-other-ten-months/https://jasonkrijgsman.com/writing/the-other-ten-months/Building the 22-page Power BI dashboard took about eight months. Data access, indicator selection, definitions and review accounted for most of the remaining ten.Tue, 14 Apr 2026 00:00:00 GMThttps://jasonkrijgsman.com/writing/the-safety-plan-that-created-the-danger/https://jasonkrijgsman.com/writing/the-safety-plan-that-created-the-danger/An approved traffic plan would queue cyclists beside an active lifting zone. A discrete-event simulation helped the contractor, municipality and safety authority agree on a safer approach.Wed, 04 Mar 2026 00:00:00 GMThttps://jasonkrijgsman.com/writing/the-captcha-that-wasnt/https://jasonkrijgsman.com/writing/the-captcha-that-wasnt/An artificial intelligence assistant directed me to a compromised conversion site. A fake CAPTCHA then instructed visitors to run malware through the Windows Run dialog.Tue, 24 Feb 2026 00:00:00 GMT