# Break the comparison
The percentage is not the experiment. The contract around it is.
This interactive evidence lab starts with a paired, like-for-like receiver comparison. Change one
assumption and watch a plausible-looking claim become scientifically indefensible. Every displayed
measurement is read at runtime from Noema's [canonical launch evidence](launch_evidence.md); the
page does not carry a second copy of the results.
```{raw} html
Interactive evidence lab
Break the comparison.
Same retained evidence. One hidden change. A claim that should no longer survive.
Loading run inventory…Checking evidence…
Contract verdict
Loading canonical evidence…
The controls will unlock when the evidence contract is available.
Comparator
—
—
—
Claim—
Waiting for evidence
Candidate
—
—
—
Comparator
Candidate
Lower is better. Bar lengths share one scale only when the metric contract is intact.
02
Live contract audit
What the percentage depends on
Same channel conditionBoth methods use one predeclared SNR cell.
Same paired aggregationBoth sides use the arithmetic mean over the same seeds.
Same metric and denominatorPre-decoder BER is compared with pre-decoder BER.
Honest comparator roleDiagnostic references remain distinct from deployable competitors.
Why it matters
The comparison is loading
Reading the retained observations and declared roles.
```
The intact state is a teaching example backed by completed experimental evidence, not a declaration
that the benchmark is publication-ready. Observed bands are minima and maxima across three paired
held-out seeds; they are not confidence intervals. See [how the launch evidence is generated and
verified](launch_evidence.md).
## Canonical experiment figure and table
```{figure} _static/launch/f3-receiver-ber-vs-snr.svg
:alt: Pre-decoder BER versus SNR for uncompensated QPSK, a calibrated diagnostic reference, and the learned receiver with an observed min-max band
:class: noema-launch-figure
The static evidence view paired with this interactive audit. Bands are observed minima and maxima,
not confidence intervals.
```
Open the [canonical result table](_static/launch/tables/t0-result-summary.csv) or the complete
[F0–F5 figure and T0–T2 table set](launch_assets.md).
## Watch the complete workflow
The recording continues from this evidence lab through a clean installation, training-contract
export, external training, returned-model validation, and the three-method UI comparison.
```{include} _includes/launch_video.md
```