Observation before spectacle.
- What does a gravitational-wave detector directly measure, and what is reconstructed afterward?
- Where do popular black-hole explanations silently switch between analogy and physics?
- How do instrument noise, calibration, and model assumptions propagate into astronomical claims?
- Which orbital intuitions fail most often when people move from circular examples to real systems?
- How should uncertainty be communicated when the observation is indirect but the evidence is strong?