Xavier O'Rourke

Blog

June 23, 2026

Do CGT Changes Mean High Risk Investments Are Effectively Taxed at 60%?

A viral chart claims the proposed CGT rules tax you more and more as inflation climbs. I rebuilt the model and fixed its assumptions one at a time — the scary slope mostly disappears.

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May 31, 2026

Against the CGT Discount

Why Australia's 50% CGT discount was a bad policy — and what a serious tax concession for risk-taking founders would actually look like.

economicstaxaustraliastartups
March 12, 2026

Dithering

Inspired by Stand-up Maths, I built a real-time dithering tool you can try in your browser.

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December 3, 2025

All-Girl World Simulation

Interactive simulation exploring what happens when every couple keeps having children until they get a girl.

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