Predictions→ Galaxy Bispectrum fNL
Galaxy Bispectrum fNL
P2 is the lead theoretical result: under its stated matter-contraction assumptions, it derives fNL = -35/16 = -2.1875. A future non-Gaussianity measurement can test that conditional prediction; no current survey measurement establishes a bounce.
P2 lead theory result
fNL = -35/16 = -2.1875
Matter-contraction scenario (conditional)
SPHEREx (~2028)
Current Constraint
Current external constraints remain too broad to establish this prediction. Earlier DESI anomaly-tracer improvement estimates are legacy/superseded pipeline work, not a current flagship result. SPHEREx forecasts are conditional tests, not detections.
Key Results
- P2 derives fNL = -35/16 under its stated matter-contraction assumptions
- Existing external constraints do not discriminate this conditional value
- Legacy anomaly-tracer forecasts are preserved as superseded methodology, not current evidence
- SPHEREx sensitivity forecasts describe a prospective conditional test
- Possible links to PBH or gravitational-wave phenomenology remain theoretical