The thread does not re-argue whether abundance inverted selection. It names an unresolved split on why settlement is not happening: comfort after success (the essay), launch cost (Starship's public claim), or a closed-loop city that no analog has run without Earth cargo. Discriminators sit on ISS resupply, BIOS-3 and Biosphere 2, NASA OIG versus Musk's cost-per-tonne, and McMurdo's annual Deep Freeze. Until that split is scored, "we have the technology" and "choose differently" remain two instructions. Author dispositions stay author-owned.