Generating invites for peer to peer sharing. On the face of it this seem a simple task. And maybe it is in person it is but how about on the Internet, is it possible to establish a peer to peer connection in a privacy preserving manner between two peers? The answer is yes but effort is required both technically and from those using the tools.
Direct peer to peer connections are called warm peers. Next cold peers, performing machine learning with peers you have not directly connected with but we still want to collaborate with to build e.g a local river simulation.