The hierarchy
A Seed is the smallest unit — a single page or article on a single domain. Seeds have topical affinity but no obligation to each other.
A Cluster is a group of seeds that share enough topological overlap to link usefully. Clusters live on one domain but have their own internal hub / spoke structure. The Content Empire blueprint in Brainboot produces one cluster per run — that's where Brainboot and Lattice overlap operationally.
A Constellation is a set of clusters spanning multiple domains that share an underlying thesis. The same topic treated from multiple angles, each on its own site, with cross-site backlinking that reinforces topical authority at the constellation level without concentrating link juice on a single domain.
A Lattice is the full network — every constellation together, treated as one organism for the purpose of pruning, promoting, and reallocating attention. The Lattice Dashboard is how I steward the organism: an admin surface that lets me audit, monitor, and auto-patch the network from one control plane instead of one domain at a time.