I also hope you don't intend to communicate anything that requires security or privacy because, assuming you mean HAM bands in HF, then you can't encrypt anything.
The problem with using RFC1149 is rounding up and training enough seabirds—pigeons won't fly that far over water. Albatrosses would be ideal, but there might not be enough of them available.
Hmm. Can we instead attach mesh repeater units to the albatrosses, and hope that enough of them take up optimum spacing for long-distance transmission? Or perhaps it would be better to just string a line of buoys across the Bering Strait once Russia stops being cantakerous. Then all we have to do is find a way to connect up Australia and a few assorted islands here and there.
From what I understand it's the final form of decentralization. The idea is that a bunch of user/community owned computers communicate with each other and act like an alternative community based internet provider. Big cities already implement some form of this like NYC.
How would you propose connecting to a mesh network without the use of an ISP? Are you thinking wireless (wifi)? For something like that to work you would need an AP/repeater every 150 feet or so. How would you cross oceans without bouncing wireless signals off the
ionosphere (creating latency issues) or using a cable (requiring some entity to maintain it - $$$)?
If you break it down into the requirements to do such a thing you can start to understand why your question is a bit ridiculous.