I am by no means an expert, so please someone correct me if I'm wrong.

But the problem is that the whole core identity mechanism is built on asymmetric crypto, that is safe now but will not be safe in the future. And because it's in that core layer, you cannot just "upgrade" your crypto.

The network collapses permanently and very much un-gracefully once that cryptography is no longer secure.

This.. apparently(?) was done to reduce overhead for usage with e.g. LoRa(?), but that makes the whole thing a forever prototype that can never truly be used beyond being a niche art project.

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You also don't really have a way to kick bad actors out without completely recreating your network, which is.. not ideal. You can make that work, but as soon as a single node is compromised, you have to re-provision all of the rest within the network.

That's because they just share a single secret to become that specific closed network.