

If I understand it correctly, it’s “federated” in the sense that you can create similar infrastructure to Bluesky’s using ATProto and have your posts show up there, but that reality seems pretty academic because not many people are doing that compared to Mastodon.





If it’s not something about signaling, it might be a resonance frequency - I could imagine sympathetic vibrations becoming problematic for the trackbed in spots due to the composition of the ground in some way, similar to earthquakes being able to liquefy soil.