On November 28th, the Ethereum Foundation announced that applications for the "Next Billion Fellowship" Cohort 4 are now open and will end on January 15, 2024.The fellowship aims to find applicants who can share their personal experiences and future projects, requiring researchers to express their project's vision in public and openly share their articles or code with the community. Previous projects have included research, building concept validation, and "extended collaboration" plans beyond Web3.