I’ve read all the posts and, as the 'old man of the village', I would suggest taking a look at FidoNet. It was running 40 years ago, for more than a decade, before the internet was available to the average person.

Store-and-forward, hierarchical organization, scheduled transmissions, working over dial-up and radio links, everything is there.

There is nothing new to invent, and it was far more reliable than the 10m real-world range of BT5 (not the 1km claimed for lab devices, which aren't commercial phones).

A BT5 mesh only works under well-defined conditions, which usually coincide with the cases where you don't actually need it.

FidoNet has a lot of it solved, for sure. But doesn't it rely upon pre-configured paths between nodes in order to handle message routing?

If so, then: Wouldn't it fall down completely when operating in the ever-shifting and inherently disorganized environment that a sea of pocket supercomputers represents?

Thanks for posting - this is really interesting. An idea perhaps whose time may have come. Out of interest (no criticism implied) but do/have you use this tech? and if so what was your experience?