The brand new proof of time-sensitive, high-quality preservation in a clinically possible setting brings thoughts importing nearer to actuality.
A 3D connectome map exhibiting the intricate neural wiring the 14-minute window goals to protect (Picture: Google Analysis/Lichtman Lab (Harvard). Rendering by D. Berger)
Scientists have edged nearer to the sci-fi prospect of thoughts importing after figuring out a crucial 14-minute window to protect a mind’s intricate neural structure following demise. This idea—digitising consciousness to dwell on after the physique fails—was popularised by science fiction programmes, most notably within the San Junipero episode of Black Mirror.
In a breakthrough detailed in a preprint revealed on bioRxiv on March 7, 2026, researchers at Nectome—an organization specialising in high-fidelity connectome preservation—demonstrated near-perfect ultrastructural preservation of a complete giant mammal mind utilizing a protocol designed to align with human physician-assisted dying legal guidelines.
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The staff, led by Aurelia Tune, Anna LaVergne and Borys Wróbel of Nectome Inc, discovered that blood washout and chemical fixation should start inside roughly 14 minutes of cardiac arrest to forestall irreversible injury from clotting (the “no-reflow” phenomenon).
Beginning the method at round 18 minutes resulted in failed preservation, however below the 14-minute threshold, each neuron, synapse and molecular construction remained “fantastically preserved” throughout the entire mind.
The work, performed on pigs as a human-sized proxy, refines aldehyde-stabilised cryopreservation: blood is changed with fixatives to halt decay, adopted by cryoprotectants that enable vitrification—a glass-like state at round -32°C—probably steady for millennia.
Borys Wrobel, a lead scientist at Nectome, emphasised the shift in direction of scientific rigour in a technical manifesto: “I’ve launched right here a brand new type of cryonics which I hope will transfer the sphere away from Pascal’s wager and in direction of a rigorous self-discipline that can grow to be a mainstream a part of end-of-life care.”
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He pressured the process’s deliberate, non-emergency nature: “We don’t supply an emergency response mannequin as a result of there isn’t a emergency response mannequin we might do which might meet our commonplace.”
Whereas revival know-how doesn’t but exist, Mr Wrobel asserts the tactic captures “all the data that might be wanted for revival,” making a “frequent forex for connectomic evaluation” that future scanning and simulation might learn.
The protocol’s compatibility with assisted dying frameworks—akin to these in Oregon—marks a significant leap from earlier lab-based animal trials.
Nectome is reportedly getting ready to supply the service to terminally in poor health people, permitting them time with household earlier than the scheduled process.
Critics notice the method stays 100% deadly and speculative, echoing controversy round Nectome’s 2018 origins when it pitched mind preservation explicitly tied to euthanasia.
Nonetheless, the brand new proof of time-sensitive, high-quality preservation in a clinically possible setting brings thoughts importing tangibly nearer—offered future advances can decode and reconstruct the frozen connectome.
Excessive-resolution electron microscopy photographs of the preserved synapses can be found on Nectome’s web site, providing visible proof of the approach’s precision.
Whether or not this heralds digital immortality or merely everlasting preservation stays an open—and profoundly moral—query.
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