Cryosphere Podcast

Cryosphere Podcast

Chilling thoughts on Cryonics, Biostasis, and related matters. cryospherepress.substack.com

Episodes

April 26, 2026 40 mins

Watch the episode on YouTube here.

This episode was recorded before the tragic passing of Mike Perry. In this episode of the Cryosphere Chat we discuss:- In which scenarios we'd want to be cryopreserved- Whether Nectome's 12-minute rule is wise- What are the elements of a cryonics Service Organization- The schedule for the Biostasis Summit- Whether interest in space biostasis can help cryonicsLinks:- Buy tickets for the Biostasis da...

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In this epsiode of the Cryosphere Chat we discuss:

* The themes of this year's Biostasis Summit

* Our thoughts on Tomorrw Bio's big announcement about longevity experts

* Greg Fahy's paper on ultrastructure preservation in vitrified brains

Also reminder to buy your tickets for the Biostasis Summit on the Vitalist Bay website. Use code CRYOSPHERE20 for 20% off or apply for a larger needs based discount...

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In this epsiode of the Cryosphere chat we discuss:

* The next Global Cryonics Summit

* What Daniel saw at the Sparks Brain Preservation event

* How to sustainably scale up cryonics organizations

To watch this on video —>

Links:Join The Global Cryonics Summit Mailing List: https://www.globalcryonicssummit.com/



This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, vi...
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In this epsiode of the Cryosphere Chat we discuss: ● The research proposal we submitted to BRLS● Why slow growth could be an existential risk to cryonics● Our review of the Fixation vs. Vitrification discussion● Why there are so many autistic cryonicistsLinks:Fixation vs. Virtification DiscussionBiostasis Pacific NorthwestI’ll see ya later mom... Reddit postCryosphere Discord



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There has long been debate in the cryonics community on whether the best procedure for preserving patients is to use chemicals to fixate the brain or to perfuse cryoprotectants and use cryogenic temperatures to vitrify the body (as Alcor, Tomorrow Bio, and Cryonics Institute do).

We brought together two of the best researchers in the field to help us understand each procedure including what we care about preserving in the brain, th...

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October 18, 2025 36 mins

The gang catches up with Emil Kendziorra after the Biostasis 2025 conference at the European Biostasis Foundation. Watch it on YouTube here. Topics covered include:

* How to get a Tomorrow Bio ambulance in your hometown

* Tomorrow Bio’s plan to collect brain samples to check ultra-structure preservation in its patients - and how it will respond to what it finds

* What’s new and what’s next for Tomorrow Bio

* Our near death experiences

L...

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September 28, 2025 46 mins

In this second episode of Cryosphere Chats we discuss Until Labs and Alcor’s organ preservation strategies, our experiences convincing others about cryonics, using terms like hibernation or cryosleep instead of death when explaining cryonics, and more!

Watch it on YouTube here.



This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit cryospherepress.substack....
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We’re trying out a new format where the team behind the Cryosphere has an informal discussion on a range of cryonics related topics.

Watch the video version on YouTube.



This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit cryospherepress.substack.com
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In this episode we talked to Ariel Zeleznikow-Johnston, a research fellow at Monash University and author of The Future Loves You. This episode includes considerable debate between the hosts and the guest, as well as participation from a live audience at the Biostasis week at Vitalist Bay.Topics Discussed & Debated:

* Why Ariel has used terms like "pseudoscience" "cult-like" and "snake oil" to describe cryonics

* Cryopreservation v...

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In this episode of The Cryosphere Podcast, hosts Max Marty and Rebecca Ziegler sit down with Mark Woodward, founder of Wake Bio, who's applying cutting-edge AI techniques to solve one of cryonics' most fundamental challenges: developing superior cryoprotectants. With a background in AI/ML at Google Brain and Stanford, Mark explains how he's now using machine learning to rapidly explore the chemical landscape in search of compounds ...

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In this episode of The Cryosphere podcast, hosts Max Marty and Rebecca Ziegler welcome Dan Held—a serial crypto entrepreneur and Bitcoin educator with over 850,000 followers on social media. As a General Partner at Asymmetric and former Head of Marketing at Kraken, Dan brings a wealth of experience in marketing disruptive technologies. He recently spoke at the Global Cryonics Summit in Miami about how cryonics can market itself and...

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*(edit) We are officially sold out, but you can still add your email at the bottom of the website to get updates about future events. 

In this quick update episode, Max and Daniel take a break from their usual guest format to update you on the Global Cryonics Summit in Miami this July 20th and 21st. Take a quick listen and then check out the show notes for details.   If you haven't purchased your tickets yet, you can...

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Important Note! Join your hosts Max and Daniel, plus luminaries from across the Cryonics industry, at the upcoming Global Cryonics Summit on July 20-21st in Miami, Florida. Go to globalcryonicssummit.com for early-bird tickets and more information.

-----


In this episode, Max and Daniel are joined by John Smart, the Vice President and Co-Founder of the Brain Preservation Foundation.  Our wide-ranging conversation d...

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In this brief update episode, Max and Daniel take a break from their usual guest format to share some exciting announcements and milestones.

In this update episode, we discuss:

  • Cryosphere's Growth: Celebrating the big achievement of reaching 1,000 members in our community.

  • Upcoming AMA: All about the "Ask Me Anything" session on Saturday, October 28th at 1PM CDT (UTC-5) at the Cryosphere cryonics discord s...
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In this episode, Max and Daniel are joined by James Arrowood, Alcor's new CO-CEO.  Our wide-ranging conversation delves into James's approach to leadership, his views on Alcor as a business and several of his upcoming strategic initiatives.

In this captivating conversation, we explore:

  • The upcoming strategic meeting taking place in Estes Park, CO on Aug 25th and 26th (see below for tickets and more info).
  • How James views...
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In this episode, Max and Daniel sit down with Michael Benjamin to discuss his meta-analysis of Alcor's case history. He is working on a comprehensive meta-analysis of all Alcor patient cases, an endeavor whose goal is to develop, experimentally validate, and refine a quantitative cryopreservation evaluation methodology. Michael brings with him 20 years of experience in physics, engineering and mathematics having worked at plac...

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In this episode, Max and Daniel sit down with the renowned Aubrey de Grey to discuss the connection between life extension and cryonics. They cover a wide range of topics, diving into the latest breakthroughs and obstacles in both fields.

In this captivating conversation, they explore:

  • The current state of rejuvenation technologies
  • Recent advances in longevity research over the past decade
  • Challenges still facing life extension sci...
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In this episode we’re speaking with Rebecca Ziegler - Product Manager at Tomorrow Bio, a member of the Berlin Standby Team, and the newest moderator on the Cryosphere.

  • Why Rebecca chose business over politics
  • What it’s like to work at Tomorrow Bio
  • Job opportunities in European Cryonics
  • Why Tomorrow Bio is expanding to the US
  • Profit vs Nonprofit corporate structures in the Cryonics space
  • The motivations of Cryonicists
  • Tomorrow Bio’s ne...
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November 29, 2022 30 mins

In this special episode, Max Marty is speaking with return guest host Nikki Olson about the launch of the great Cryonics Survey of 2022. The Cryonics Survey is a large comprehensive survey of Cryonicists, the Cryocurious, and Cryocrastinators; intended to improve our understanding of the people most interested in this audacious endeavor.

---> Please take the survey at http://bit.ly/cryosurvey2022 ! <---

In t...

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August 25, 2022 195 mins

In this episode Max and Daniel speak with Kai Micah Mills. Kai is the Founder of Cryopets, the first company focused on pet cryopreservation. Before founding Cryopets, Kai founded and ran several entrepreneurial ventures the tech space. 

In this episode we discuss: 

  • Kai's history as a tech entrepreneur
  • His views on the value (or lack thereof) of traditional schooling
  • Growing up religious, and the impact of a religiou...
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