reticulum, whats special?

Imagine being in a Pub with thick walls, so no reception to the outside. then getting a message from a friend you know they are out of range lora-only.

how could that happen? your friend in the pub, also reticulum user had columba on with wifi plus bluetooth as interfaces. this was able to receive annouces to find paths to others. for example to the friends laptop with the lora-only human. still chatting possible, thats the unstoppable reticulum magig ;)