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Humanity's Immortality Through Multiplanetary Settlement: The Economic Imperative of Reusable Rockets
Humanity achieves true immortality not by extending individual life indefinitely but by ensuring the survival of the species beyond Earth’s eventual demise. This requires overcoming the prohibitive costs of space travel through fully reusable rockets, which reduce launch expenses by up to 2.5 orders of magnitude and enable sustainable colonization of Mars and beyond. By producing propellant on Mars via in-situ resource utilization and implementing orbital refueling, missions become economically feasible, transforming space settlement from a heroic rarity into a routine extension of civilization.
From original sources
Mars colonization · 86 stops · ~172 min