[JoeAltmaier]

Oh! And for your ancient-networking subject, I submit:

  * grow trees in rows; cut them in ascii sequences (a stump is a 0). Visible for miles!
  * scratch dated messages in turtles' shells; sample shells continuously and collate
  * spread gossip where the subject is a code e.g. marital infidelity means one thing, sexual preference another. Collect gossip and reconstruct. Use political topics for ack and nack. 
  * Grow crops each year to encode the message: corn is a 1, soybeans a 0. Study crop market reports. Caution: baud rate is low and noise level high, recommend using ECC
  * Become a fashion icon. Adjust skirt lengths microscopically and seasonally to encode multiple bits! A plus: observation and measurement has side benefits

Let me know if any of these suit your purposes. I release them to the public domain.

[rtkwe]

Friendly reminder that the code block style is basically unreadable on mobile (and not so great on desktop either) because it doesn't wordwrap.

[JoeAltmaier]

Dunno how to do lists

[rtkwe]

* Just put an asterix or something

* Don't indent by more than one space

* Hackernews doesn't support proper list formats or really anything beyond italics, urls, and codeblocks.

[shabble]

Or just implement an appropriate RFC[1] :)

[1] https://tools.ietf.org/html/rfc1217