+as efficient a manner as possible. The reason we have chosen this
+mechanism is that most L</Messages> need to be broadcast to all nodes.
+
+Experience has shown that nodes will appear and (more infrequently)
+disappear without much (or any) notice.
+Therefore, the constantly changing and uncoordinated
+nature of the network doesn't lend itself to fixed routing policies.
+
+Having said that: directed routing is available where routes have
+been learned through past traffic.
+Those L</Messages> that could be routed (mainly single line one to
+one "talk" L</Messages>)
+happen sufficiently infrequently that, should they need to be flood routed
+(because no route has been learned yet) it is a small cost overall.
+
+=head1 Messages
+
+A message is a single line of UTF8 encoded and HTTP escaped text
+terminated in the standard internet manner with a <CR><LF>.