Theory 29/The rival says the effect is not there/Dark matter
Direction or Subtraction?
The claim
Detection below the neutrino floor requires directional information because the background is irreducible.
01The rival explanation
Better background modelling and subtraction can reach the same sensitivity, so direction is convenient rather than necessary.
02What would tell them apart
Subtraction requires the background to be measurable in calibration; an irreducible background cannot be subtracted below its own uncertainty.
03Prediction
Sensitivity should stall at the floor without direction.
04Refutation
If subtraction reaches below the floor, the rival wins.