A Fedimint is a cross between a private chat, a Bitcoin citidel and decentralized “local credit union” - where participants can pool funds and make collaborative-yet-private payments to other federations and individuals. I think it will enable people to build trusted communities with circular economies that can connect and organize people in deeper ways than just payments - such as families, social circles, religious and political affinity groups.
I think it would bring a much needed element of personal trust, privacy and collaboration to Bitcoin - as it is currently too individualistic and radically self-reliant for many people to get into.
I don’t see how it will be tolerated by the surveillance capitalism complex, tho. It will be slandered as a terrorism and drug trafficking finance technology.