Social Feed Ranking Algorithm Simulator

Mobile social apps don't show posts in the order they were made — every screen refresh re-scores every candidate post and re-sorts the whole feed. This simulator renders that ranking pipeline in 3D: each post is a colored card whose height in the stack is driven live by Score = Weight × Affinity × Decay(Δt), the same shape of formula behind Facebook's original EdgeRank and every feed algorithm descended from it. Tune the decay rate to make the feed prize freshness or staying power, speed up or slow down the simulated clock, spawn new posts of four content types with their own weight multipliers, and click ▶ Like or ▶ Comment on any card to boost its affinity and watch it climb — or watch a neglected post quietly sink as its score decays.