Egregor Goods Is a Price Map That Shows Its Uncertainty

Why it surfaced

Egregor does not present a single authoritative price: it combines readings from people, receipts, and public sources, then displays freshness, precision, reporter reliability, and spread. Its map uses color, fading, circle size, and dot fill to distinguish price, confidence, location accuracy, and evidence depth—a rare attempt to make uncertainty part of the interface rather than a footnote.

A crowdsourced map of what goods cost at different places, with geographic comparisons, source evidence, and uncertainty attached to each estimate.