AbstractThis note proposes that boundaries—across quantum and biological domains—arebetter understood not as simple walls or edges, but as constraint regimes that governadmissibility, attenuation, coherence, and transformation. Beginning with theobservation that the term “quantum tunneling” may quietly misdirect intuition, thepaper develops an alternative conceptual vocabulary centred on barrier penetration andattenuated persistence. This reframing is shown to be continuous with the author’s priorwork on vascular homeostatic hypotheses in psychiatry. The paper offers a provisionalinvariant: coherence under constraint does not simply terminate; it attenuates,redistributes, and may reappear through attractor-governed transformation. No claim offormal closure is made. The cosmological speculation present in earlier drafts has beenremoved; the paper now restricts itself to quantum and biological domains where theboundary grammar can be given operational context.
Smith et al. (Sun,) studied this question.