Arthea
Field Notes · Inside Arthea

Inside Arthea

How the tool works, what it refuses to do, and why it's built the way it is.

Inside Arthea

How Arthea protects your financial data

Arthea is built so no one, not even us, needs to know who you are. Here's how your financial data is protected, what we don't collect, and where our protections stop.

Charan A. · Jul 11, 2026 · 4 min read
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Inside Arthea

How Arthea builds and backtests retirement forecasts

We backtested our retirement forecasts against real history — and one landed at the 0th percentile. Here's how the math works, and where it breaks.

Jul 10, 2026 · 7 min