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. so your first hop was using bluetooth to their phone. this next device was able to receive annouces to find paths to others, because wifi connected it also the internet. for example to the friends laptop with the wifi plus lora. so the lora -only human was reachable from there. so chatting is still possible, thats the unstoppable reticulum magic ;)