Here's a question I have on this -- I've been eagerly awaiting the new functionality to have onion addresses where using them doesn't reveal their existence. So

Here's a question I have on this -- I've been eagerly awaiting the new functionality to have onion addresses where using them doesn't reveal their existence. So the address itself becomes a form of shared key. But this opens another possibility of one-time addresses, and address scalability. My question is, does network cost increase with number of addresses? If peers on the network are using one-time addresses to form circuits, will that scale fine? Basically I am envisioning two people communicating via dedicated addresses for their own use only. So a single key becomes a network channel to send data to a specific peer. That "peer" could actually be many different devices, but all ultimately connect to the same distributed application with a shared state. So basically onion addresses are usernames which also let you pipe data to that user, right? How is this not the coolest thing ever?