# AB_BRIDGE_INTERPRETATION.txt
# STELLAR_BOUNDARY_DYNAMICS_I
# A–B Bridge Interpretation

PURPOSE:
Interpret the first bridge comparison between Phase A pre-collapse
pre-supernova radial-profile vectors and Phase B post-collapse light-curve
response vectors.

DATA LAYERS:
Phase A uses real processed pre-supernova profile structures.
Phase B uses observed supernova light-curve response structures.
Both domains are compared only after normalization-reviewed v2 vector construction.

PRIMARY DOMAIN RESULT:
Centroid distance = 0.584026232738
Centroid separation label = weak_separation

CLOSEST A–B PAIR:
A2_20M ↔ B_SN1993J
distance = 0.232685521403
interpretation = close structural contact in reviewed v2 feature space

MOST SEPARATED A–B PAIR:
A1_12M ↔ B_SN2012aw
distance = 2.0846018436
interpretation = strongly separated structural relation

PHASE B OBJECT RANKING BY NEAREST PHASE A PROFILE:
1. B_SN1993J nearest to A2_20M at distance 0.232685521403
2. B_SN2011dh nearest to A2_20M at distance 0.574599134067
3. B_SN2013ej nearest to A2_20M at distance 0.627292239052
4. B_SN1999em nearest to A1_12M at distance 0.834823303234
5. B_SN1987A nearest to A1_12M at distance 1.24413168497
6. B_SN2012aw nearest to A2_20M at distance 1.87865142223

INTERPRETATION RULE:
This bridge is structural and comparative. It does not claim that a specific
pre-supernova profile predicts a specific observed light curve.

VALID CLAIM:
The current processed dataset permits a first structural comparison between
pre-boundary radial profiles and post-boundary brightness-response ladders.

INVALID CLAIM:
Do not claim direct explosion modeling or object-by-object astrophysical
prediction from this bridge alone.

NEXT STEP:
Inspect AB_VECTOR_PAIRWISE_COMPARISON.csv and AB_OBJECT_RANKING.csv, then
decide whether to expand Phase A with more pre-supernova models or Phase B
with spectra/remnant/neutrino layers.