When medicine can't save you yet, cryonics buys time. It's a bet that future medicine can reverse what today calls death — a rational hedge for those with low near-term odds of reaching LEV.
The moment the heart stops is no longer the end. A cryonics team can put you on ice — and wait.
Your patterns, memories, and mind scanned and reconstructed on a new substrate — a digital you that doesn't decay and never gets tired.
From petri-dish organs and an AI clone trained on your life, to a full-body clone seeded with your memories — biology gives you a second body when the first wears out.
Before you stop, sign legal consent so a cryonics team can act within minutes of clinical death.
Heart-lung support keeps blood flowing while the team adds cryoprotectants and lowers your body to −196°C.
As a whole patient (or just the brain) you rest in liquid nitrogen — preserved for as long as medicine needs.
When medicine catches up, the damage that caused death — and the freezing itself — are repaired. Welcome back.
Cryonics rests on a plausible-but-unproven premise: that memory and identity are encoded in brain structure, and that future medicine can repair that structure after preservation. Here's where the evidence stands today.
Vitrification preserves neural tissue with measurable structural fidelity. The connectome — the brain's wiring map — can be imaged at nanometer scale.
No one has reversed cryopreservation of a whole brain. Cracking, cryoprotectant toxicity, and information-theoretic death remain open problems.
You pay a small cost now for a non-zero, hard-to-quantify chance later. A rational hedge, not a guarantee — and one that's meaningless if you don't also do the pillars.
The two leading providers — both can be arranged before crisis and funded with a life-insurance policy of a few dollars a day.
Arizona. Whole-body and neuropreservation. Founded 1972 — the most established name in cryonics.
Michigan. Member-run, non-profit, lower cost. Whole-body and neuropreservation.
No. Modern cryonics uses vitrification — cooling with cryoprotectants that turn tissues into a glass-like solid without forming ice crystals, which is what damages cells.
Not yet. Cryonics is a one-way trip today. The wager is that future medicine — possibly centuries away — can repair both the original cause of death and the preservation damage.
No. Cryonics is a last-resort hedge, not a replacement for the things proven to extend life today — sleep, exercise, diet, stress regulation, relationships, and biomarker tracking.
Most members fund it through a life-insurance policy costing a few dollars a day. Whole-body runs $28k–$220k depending on the provider; neuropreservation is less.
Yes. Cryonics begins after legal death is pronounced, but the team must standby to act within minutes — so the brain is preserved before information-theoretic death sets in.