That is cool trick though. So it's basically sending the port itself around and changing its ownership, with something like port_connect(Port,NewOwner)?
The trick is more commonly used when writing to sockets. A socket owner is required for reading, not for writing.
The trick then is that when you need to write lots of data to a socket to just send a copy of it to the writer so they can dump all their data for cheap, but without changing ownership (which is costly).
