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Barrow Over Kardashev The aliens went small

The Barrow scale ranks civilizations by how small they can build, not how much energy they burn - and maybe that's where the aliens went.
Luitpold-Alexander Zollorsch
Luitpold-Alexander Zollorsch
@luitpold.me

Kardashev ranks civilizations by how much energy they burn; John D. Barrow flipped it in 1998 and ranked them by how small the things are they can bend – genes, molecules, atoms, nuclei, particles, spacetime itself. On Kardashev we’re still stuck at ≈0.7, not even Type I; on Barrow we’re already spelling logos with single atoms. The catch: poking at the Planck scale would take a collider circling the sun, a little past Neptune, so going deep means going wide first. Linear brains, nonlinear cosmos: 103 paper folds span the observable universe and squeeze the sheet’s width down to a Planck length. Maybe the aliens aren’t missing, though; maybe they just stayed home and went small 🔬


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