retrocausality
Compiled with AI assistance and selectively reviewed. Please consult the cited passages; the books remain the authoritative source. About this companion
Editorial synthesis · provisional
Definition
Retrocausality names the apparent influence of later boundary conditions on an earlier quantum description. In the transactional account adopted here, advanced confirmation participates in a self-consistent exchange rather than carrying a controllable message into the past. RTI locates the relevant possibilities outside ordinary spacetime, distinguishing its time-symmetric underlying structure from the directed transfer and definite record of a completed transaction.
Explanation
The manuscript discusses delayed-choice arrangements as challenges to an exclusively forward mechanical picture. Its transactional interpretation constrains the whole exchange by compatible emission and absorption, rather than allowing an observer to alter a settled earlier event at will. A later choice does not supply a usable warning to an earlier self.
The conserved energy transfer remains directed from emitter to absorber. Advanced-wave language therefore must not be converted into negative-energy transport, arbitrary causal loops or superluminal communication. The underlying symmetry concerns the interpretation of possibilities, while an actualization contributes an irreversible event to the spacetime record.
This is an adopted account among empirically equivalent quantum interpretations. The author’s explicit physical-premise note preserves that status, and the analogy with living anticipation is limited: an organism can embody future-oriented organization without tomorrow sending a force backward. The entry keeps these physical and organizational registers distinct.
Scope and attribution
Preserve the interpretation-specific meaning and the prohibition on usable causal paradoxes.
AB — The Actual Book
Source-verified occurrence; see the printed-page references below.
Occurrence locators: Notes: 235, 238.
PB — The Possible Book
Source-verified occurrence; see the printed-page references below.
Occurrence locators: 170.
RB1 — The Real Book, Volume I: The Possible Is Real
Advanced confirmation is constrained by self-consistent exchange and no usable backward message.
Occurrence locators: 51, 52, 53, 55, 56, 58, 62, 63, 65, 66, 67, 68, 69, 70, 76, 86, 89, 90, 91, 96, 97.
RB3 — The Real Book, Volume III: Murmurations
The physical premise is adopted rather than proved.
Occurrence locators: 103; Notes: 38.
Background used in the editorial explanation
Named theories and mechanisms are distinguished from neighboring background, homonyms and the author’s own synthesis. Reproduced AI passages retain their separate voice.