This book has drawn on some aspects of quantum physics not as a metaphor alone, but as a methodological lens for anthropology. This has not been easy, mainly because there are no easy correlations between this domain and anthropology and some scholars don’t accept that a quantum social science—in this case its ontological and epistemological aspects are possible. The uncertainty principle, wavefunction collapse, superposition and resonance seemed to appear as aspects of the lived experience of coastal peoples discussed in this book. In these places, heritage, identity and governance are always contingent, relational and entangled. Thus, the book thinks with quantum mechanics to refuse linear causality and to accept that heritage is both particle and wave: at once tangible ruins and intangible memories simultaneously rooted in place and dispersed across oceans and time. In this sense, quantum anthropology does not seek to simplify complexity, but to remain with it—to allow heritage to be multiple, vibrant and indeterminate, like the sea itself.