@Angelica you have sparked a flurry of illustrations

@mix 's drawings seem to be about sharding one's SSB secret...

Here is my first attempt to capture an assembly. I am going to borrow some of Mix's drawings rather than ham my own, where the step is the same... I am attempting to show that the main thing which is being backed-up / socially sharded is one's seed. This is distinct from one's ssb secret. One can have many seeds attached to ones ssb secret. An assembly is a gathering of people (with an ssb secret) using a unique seed to collectively created a new treasure chest.

In the following example 4 out of the 5 seeds are needed to move treasure out of the treasure chest. It is D's seed which is being sharded and distributed out amongst their social fabric.