Publius explains Root
Root is a fungible wrapper for Beanstalk Silo Deposits that implements the ERC-20 Standard.
Root is designed as a rent-free public good and plans to support many types of permissionless markets denominated in Roots.
Market types Root will support include:
  • Prediction markets like sports betting and political elections (see Paradox);
  • Financial markets such as Bean interest rate swaps and asset futures; and
  • Commerce markets via NFT-represented assets, goods, and services.
You can read more in their announcement: Root: Liquid, On-Chain Markets