The big question: can we come back?
At the core of cryonics lies one bold idea: that a person preserved at ultra-low temperatures might one day be revived. But is cryonics revival currently possible?
The short answer: not yet.
No human has ever been revived from cryopreservation. However, the entire concept of cryonics is based on future possibilities, not current capabilities.
Let’s explore what science can — and can’t — currently support.
What cryonics does today
Cryonics is not about preventing death but about preserving patients after legal death in a way that prevents further biological damage. The process includes:
- Immediate cooling and stabilization after death
- Replacement of bodily fluids with cryoprotectants
- Vitrification: cooling to -196°C to enter a stable, glass-like state
- Long-term storage in liquid nitrogen
This process preserves structure, not function. The brain, organs, and tissues are suspended in a way that — if future science permits — could allow for repair or regeneration.
What would revival require?
A successful cryonics revival would need at least four major scientific breakthroughs:
- Cellular and tissue regeneration — the ability to heal cryopreservation-related damage
- Reversal of the original cause of death (e.g., cancer, neurodegeneration)
- Restoration of brain function and identity (the “connectome”)
- Safe reintegration into a living, functional body
These technologies are not available today. But ongoing advancements in biotechnology, nanomedicine, and AI-assisted neural mapping suggest we are beginning to approach some of the foundational capabilities.
Why preserve if revival isn’t guaranteed?
Cryonics is not a promise — it’s a possibility.
Just like early organ transplants or IVF treatments, what seemed impossible decades ago is now routine. Cryonics offers a chance to wait until medicine catches up — to preserve what we cannot yet fix.
For many, it’s a rational bet: better to be preserved in case revival becomes possible, than to allow irreversible decay that removes all options.
What the science says so far
Some recent advancements that support the viability of cryonics include:
- Successful vitrification and rewarming of animal organs in laboratory conditions
- Connectome preservation techniques that retain brain structure at the nanometer scale
- Development of low-toxicity cryoprotectants
- Ongoing research into digital brain mapping, memory storage, and brain-computer interfaces
These are small but critical steps toward the kind of revival science cryonics depends on.
Ethical considerations
Is it ethical to preserve people for an uncertain future?
Critics argue it creates false hope or diverts resources. Supporters respond that:
- It’s no more speculative than many long-term medical research programs
- The procedure is performed after legal death
- Individuals choose this with informed consent
- It expands the philosophical and ethical conversation about what death even means
So… is it possible?
We don’t know. That’s the honest answer. Revival may take decades — or longer. It may never happen. But for those who choose cryopreservation, that uncertainty is still better than zero chance.
Just as we preserve ancient texts, endangered species, and DNA, cryonics is about keeping options open — for ourselves, our loved ones, and future generations.
About Tomorrow.bio
At Tomorrow.bio, we are dedicated to advancing the science of cryopreservation with the goal of giving people and pets a second chance at life. As Europe’s leading cryopreservation provider, we focus on rapid, high-quality standby, stabilization, and storage of terminal patients — preserving them until future medical technologies may allow revival and treatment.
Our mission is to make cryopreservation a reliable and accessible option for everyone. We believe that no life — human or animal — should end because current medical capabilities fall short.
📧 Contact us at: hello@tomorrow.bio
🌐 Visit our website: www.tomorrow.bio
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