Show HN: I made a retirement simulator: 125 years of data, 25 countries

A developer going by nhootan launched Foresight Planner, a retirement simulator that uses 125 years of historical market data spanning 25 countries, per a Show HN post published on August 26, 2026.

The tool is available at foresightplanner.com and appears to be a solo side project rather than a funded startup. Beyond the headline data breadth — 125 years, 25 countries — no additional detail about the underlying datasets, methodology, or specific asset classes modeled was included in the HN submission.

Retirement simulators have become a crowded corner of personal finance tools, with established products like FIRECalc, cFIREsim, and Portfolio Visualizer offering sequence-of-returns analysis for U.S.-focused portfolios. The multi-country, long-horizon framing of Foresight Planner appears aimed at users planning retirement across different national markets or wanting to stress-test portfolios against a wider range of historical economic conditions, though the HN post does not spell out a specific differentiation thesis.

The submission reached the Hacker News front page with 8 points and 4 comments at time of publication. No pricing, team size, founding date, or roadmap details were disclosed in the available source material.