I built a "Synthetic Market" to predict the Soda Wars (and it actually worked)

Most market research is a lie. People say they’ll buy a product in a survey, but then they abandon their cart in real life. Yesterday, I launched Sediman to bridge that gap. Instead of asking humans what they think, I built a behavioral engine that spawns AI Agents with rich, census-weighted personas—diverse incomes, ages, and psychological biases—and lets them "live" through a market simulation. The Experiment: I ran 100 agents through a "2026 Cola War" simulation. The result? A 56.8% to 43.2%