Latest / Deep End Era. Engineering with Sankalp
The Brain and the Frontier: Posner Molecules, Microtubules, Diamond Thermometers and What Would Settle It
Day three, in a storm, with a bottle of whisky riding on the outcome. Gus teaches the three ways to estimate decoherence times (scattering, spectral density, spin relaxation) and a fourth way: test the consequence, not the coherence. Wren presents Fisher's 2015 nuclear-spin proposal, the 2018 Player and Hore critique, the 2025 PNAS lithium-isotope calcium phosphate result and a 2025 negative model. They weigh Orch-OR against Tegmark (2000), the Gran Sasso exclusion of parameter-free Diósi-Penrose collapse (Donadi et al. 2020; Derakhshani et al. 2022), Franks and Lieb on anaesthetic targets…
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