David Holz: doubling space industry every 12 months hits Kardashev I by 2064
DavidSHolz · x · 2026-09-27
David Holz lays out a back-of-envelope extrapolation: if off-world industrial production doubles every 12 months starting from a seed in 2030, humanity reaches Kardashev I by 2064 and Kardashev II by 2098. Even at a 24-month doubling time, the milestones still land at 2096 and 2165.
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