What you really need is an appropriate UI layer over email: https://medium.com/hackernoon/email-re-skinned-as-a-social-n...

The Matrix protocol is more or less an open, replicated database. E-mail is similar in some ways, but:

1: it doesn't define enough metadata ("this is an image", etc)

2: it doesn't handle backtracking well, if one of the recipient servers misses a message (servers are just supposed to retry a given number of times).

3: it has no security/authentication concept.

All of these could be bolted on regular e-mail, but calling it e-mail at that point would be a travesty, and we might as well call that a new protocol. And if we are writing a new protocol, we might as well take a few liberties to address the shortcommings of the first (one could argue against the last part).

Fun bit: "BCC is not possible". Actually, a BCC e-mail would be an ad.

Tardigrade from Storj is the closest thing in production to solve decentralized data storage: https://tardigrade.io/

The user pays the storage cost upfront. However it is suitable only for file like content, not mutable content like databases AFAIK.

And a few petabytes of open storage.

And a few open data centers to handle the load to the database and to the storage.

can you define "open"?

mongoDB with default credentials

Dang beat me to it

lol @ this screen name and question combo.

By open we mean everyone gets full permissions, tovarisch!

ActivityPub