I am ideating (and looking for feedback) on a project to provide education without student-debt. The project description is here: https://loan-free-ed.neocities.org
Federated blockchain is still private and permissioned. You may not have a single entity controlling it but you still have a group of entities who already trust each other and have agreed to create a shared database. My point is, private blockchain doesn't seem to be having any additional advantage at the cost of efficiency and speed of traditional database.
