
The Cold Hard Facts
So, you’ve probably heard about cryonics—the practice of freezing dead bodies in hopes of future revival—whether from sci-fi movies, an episode of Twilight Zone, or news stories about tech billionaires planning for immortality. But is there any legitimate science behind it, or is it all wishful thinking dressed up in lab coats? Let’s dig into this fascinating and controversial field.
Fair warning: this topic gets technical fast. I’ll do my best to keep things accessible, but some science-speak is unavoidable. I won’t pretend to offer an exhaustive examination of every element—that would take a textbook, not a blog post.
First, Let’s Get Our Terms Straight
Before we dive in, there’s an important distinction to make. Cryogenics refers broadly to the science of producing and studying very low temperatures—generally below −150°C (−238°F). This is a legitimate field with real-world applications to everything from rocket fuel to medical equipment to food preservation.
Cryonics, on the other hand, is specifically the practice of preserving a person who has died, with the hope of reviving them sometime in the future. This is where things get speculative—and controversial.
The Scientific Foundations: How Did We Get Here?
The ability to produce extremely cold temperatures emerged from a deepening understanding of thermodynamics—the science of heat, energy, and work. The key theoretical developments happened between 1842 and 1852 when a number of scientists published foundational works on the first and second laws of thermodynamics.
The practical breakthrough came in 1877, when oxygen was first cooled to the point where it became a liquid (−183°C). The term “cryogenics” itself was coined in 1894 by Kamerlingh Onnes of the University of Leiden to describe the science of producing very low temperatures.
There is a theoretical lower limit to how cold anything can get, known as absolute zero: −273.15°C or −459.67°F. At that point, molecular motion essentially stops, though reaching it is physically impossible because the energy required approaches infinity.
The logic behind biological cryopreservation flows naturally from this: if cold temperatures slow and eventually halt chemical processes, then extreme cold could theoretically preserve living tissue indefinitely. At liquid nitrogen temperatures (−196°C), the chemical and biological reactions in cells slow dramatically—and in theory, stop—which is the core premise of cryonics.
A key conceptual pillar of cryonics is that “death” is a process, not a single moment: cells and tissues undergo a continuum of injury after circulation stops, and some damage that is irreversible today might be repairable with future nanotechnology or regenerative medicine. Technically, current procedures emphasize rapid cooling after legal death, cardiopulmonary support to circulate cold fluids, and perfusion of the vasculature with concentrated cryoprotectant solutions that aim to achieve vitrification (a glass‑like solid state with minimal ice).
The Ice Crystal Problem: Why Freezing Destroys Living Tissue
Here’s where things get complicated. While the physics of cold temperatures is well understood, the biology of what happens when you freeze living tissue is where cryonics runs into serious trouble.
Freezing is often catastrophic for cells. On the scale of organs, ice formation can cause mechanical damage through expansion and can literally shatter tissue. When ice forms inside a cell, that cell almost always dies. Wide scale freezing also disrupts capillaries and vessels so that even if the cells were intact, they could not be reperfused.
The brain presents particular challenges on top of all this. Neurons—the cells that form the biological basis of everything you are—are more intricate and vulnerable than any other cell type. They consume roughly a quarter of the body’s available energy just to keep themselves alive. And it’s not just the presence and number of neurons that supports consciousness and memory, but the extraordinarily precise way in which trillions of microscopic connections are arranged between them. Those connections are how your memories and identity are stored, and they are exactly the kind of delicate structures most vulnerable to freezing damage.
Vitrification: The Workaround
To sidestep the ice crystal problem, cryonicists developed a technique called vitrification—essentially turning the body into a glass-like solid without crystallization. The process involves replacing the body’s blood with a special solution of cryoprotectant chemicals. These compounds are believed to prevent ice crystal formation and reduce tissue damage. Bodies are then stored in specialized containers filled with liquid nitrogen at −196°C.
The idea is elegant: instead of freezing, you’re essentially turning biological tissue into an amorphous, glass-like state where nothing moves and nothing degrades. On paper, it sounds like a solution. In practice, it creates a whole new set of problems.
The Toxicity Problem: Cryoprotectants as a Double-Edged Sword
The chemicals that prevent ice formation are toxic to the cells they’re meant to protect, and that toxicity increases with concentration. You need high doses to stop ice from forming, but those same doses cause their own cellular damage.
Dimethyl sulfoxide (DMSO) is the most widely used cryoprotectant, and also the most problematic. It can trigger programmed cell death, induce unwanted cellular changes, create osmotic stress, and may be a potential neurotoxin. At higher concentrations, it may even promote tumor development.
Other cryoprotectants carry their own baggage. Glycerol, long used for preserving blood cells and sperm, simply doesn’t scale up for whole-organ preservation. Ethylene glycol—yes, the same compound found in automotive antifreeze—gets metabolized into glycolic acid, which can cause metabolic acidosis, destabilizes cell membranes and may disrupt protective water layers around critical biological molecules.
Researchers are actively pursuing alternatives, including antifreeze proteins, nanotechnology-based approaches and new cryoprotectants. Each target ice formation or membrane protection through mechanisms designed to reduce the toxicity trade-off that has plagued cryopreservation for decades, though none has yet solved the problem at the scale cryonics requires.
Can We Actually Revive Frozen Bodies?
Short answer: No. Not currently, and possibly not ever.
Dennis Kowalski, president of the Cryonics Institute, has acknowledged that cryonic reanimation is “100 percent not possible today.” Shannon Tessier, a cryobiologist with Harvard University and Massachusetts General Hospital, put it more bluntly: “…the harsh reality is that current cryonic methods give patients only false hope. As they are practiced, they are both unscientific and profoundly destructive, permanently damaging cells, tissues, and organs. For now, the dream of cryonics remains frozen.”
Even setting aside current limitations, revival would require solving an extraordinary stack of problems: repairing damage from oxygen deprivation prior to freezing, neutralizing cryoprotectant toxicity, addressing thermal fracturing that occurs during the cooling process, healing tissues that didn’t vitrify successfully, and then curing whatever originally caused death. In many cases, reversing aging would also be necessary. None of these are close to solvable today.
There’s also a deeply uncomfortable practical question embedded in all of this: even if future medicine could theoretically rebuild and restore neuronal connections, how would anyone know what connections belong where? While the scanning technology is advancing fast enough that reading a well-preserved brain’s connectome at molecular resolution looks plausible within the coming decades, whether that information would be sufficient to reconstruct a person — biologically or digitally — remains genuinely unknown. Unless a complete molecular-level brain scan is performed before freezing—and stored alongside the tissue—trying to reconstruct memories and personality would be like trying to rewrite a burned book by studying the ashes.
Nanotechnology and Recent Progress
Cryonicists often point to future nanotechnology as the solution to the repair problem. The central thesis is that nearly any structure consistent with the laws of chemistry and physics could theoretically be built at the molecular level. The idea is that tiny molecular machines could one day repair cellular damage caused by cryopreservation rapidly enough to make revival possible. This remains highly speculative, but it’s not impossible in theory.
There has been some genuine progress on the warming side of the equation. Scientists have developed methods for safely thawing frozen tissues using nanoparticles—specifically, silica-coated particles containing iron oxide. Tests on human skin cells, pig heart valve segments, and pig artery sections showed no signs of harm from the rewarming process, and the tissues preserved key physical properties like elasticity. Application at the whole organ level has yet to be demonstrated.
What Actually Works Today
It’s worth noting what cryopreservation can accomplish now. Medical laboratories have long used the technique to preserve animal cells, human embryos, and simple tissues—eggs, sperm, bone marrow, stem cells, corneas, and skin—for periods of up to three decades, with successful thawing and transplantation. This is established, working medicine.
The leap from preserving a cell or an embryo to preserving a whole human body, however, is enormous. Large vitrified organs tend to develop fractures during cooling. No one has successfully preserved and revived a large mammal from a fully vitrified state.
What About The Wood Frog?
Invariably, in the discussion of cryonics someone will bring up the wood frog. In northern climates, the wood frog can seemingly freeze solid in the winter and then be hopping around with no obvious injuries in the spring. But there are several reasons why this isn’t applicable to the human science of cryonics.
First, and most obvious, the wood frog is cold-blooded, and we are not. The wood frog survives freezing at -3°C to -16°C, while cryonics stores bodies at -196°C—temperatures no frog could survive. Crucially, wood frogs, thanks to eons of evolutionary adaptation, prepare biologically before freezing—their liver actively flooding tissues with glucose cryoprotectant through a functioning circulatory system. While most metabolic activity ceases, the frog’s cells remain alive throughout; cryonics begins with legally dead patients. Even Ken Storey, the leading wood frog researcher, is a prominent cryonics skeptic. The frog demonstrates cold-blooded animals can evolve freeze tolerance—not that dead mammals can be revived from liquid nitrogen temperatures.
The Bottom Line
Cryogenics as a branch of physics is legitimate, well-established science. Cryopreservation of cells, embryos, and simple tissues works and has real medical applications. Cryonics—preserving entire human bodies or brains for future revival—is built on legitimate scientific principles but requires technological capabilities that don’t exist and may never exist. The damage from freezing is extensive, cryoprotectants are toxic, and no proven method exists for repairing the accumulated harm, let alone reversing death itself.
One cryonicist summed it up honestly: “Most people do not think it’s going to work and they might be right.”
That said, given the remarkable arc of scientific progress over the past few centuries, it’s difficult to dismiss cryonics entirely. If the next few centuries bring comparable advances, arguing that tissue repair is inherently and forever impossible becomes harder to sustain.
For those who choose cryopreservation, it’s essentially a bet—a wager that future science will solve problems we can’t currently solve, using technologies we can’t currently imagine. Whether that’s a reasonable gamble or an expensive expression of unfounded technological faith is something each person has to decide for themselves.
There’s one practical question nobody seems to have a good answer for: if the technology to reanimate frozen bodies is ever developed, who pays for it? None of the current cryonics companies appear to have a clear idea of what future revival costs might look like, or what happens if the cost of maintaining storage outlives the payments made upfront. As it stands, collecting rent from the frozen is not a well-developed business model.
One last thought, more philosophical than technical. Just because science may one day be able to reanimate a cryonically preserved human, should we?
Illustration generated by author using ChatGPT
Sources:
NIST Cryogenics: https://trc.nist.gov/cryogenics/aboutCryogenics.html
Britannica on Cryogenics: https://www.britannica.com/science/cryogenics
Britannica on Cryonics: https://www.britannica.com/science/cryonics
National Library of Medicine-PMC – Scientific Justification of Cryonics: https://pmc.ncbi.nlm.nih.gov/articles/PMC4733321/
National Library of Medicine-PMC – Spending Eternity in Liquid Nitrogen: https://pmc.ncbi.nlm.nih.gov/articles/PMC3328517/
National Library of Medicine-PMC – Ice Inhibition for Cryopreservation: https://pmc.ncbi.nlm.nih.gov/articles/PMC7967093/
National Library of Medicine-PMC – Cryoprotectant Toxicity: https://pmc.ncbi.nlm.nih.gov/articles/PMC4620521/
National Library of Medicine-PMC – Cryopreservation Overview: https://pmc.ncbi.nlm.nih.gov/articles/PMC7995302/
National Library of Medicine-PMC – Cryopreservation of Animals and Cryonics: https://pmc.ncbi.nlm.nih.gov/articles/PMC9219731/
BMC Biology – Winter is Coming: https://link.springer.com/article/10.1186/s12915-021-00976-8
Live Science on Nanowarming: https://www.livescience.com/58098-nanotech-may-revive-frozen-organs.html
MIT Technology Review on Cryonics: https://www.technologyreview.com/2022/10/14/1060951/cryonics-sci-fi-freezing-bodies/
The Conversation on Cryonics: https://theconversation.com/will-we-ever-be-able-to-bring-cryogenically-frozen-corpses-back-to-life-a-cryobiologist-explains-69500
Discover Magazine on Cryonics: https://www.discovermagazine.com/technology/will-cryonically-frozen-bodies-ever-be-brought-back-to-life
BBC Science Focus: https://www.sciencefocus.com/the-human-body/freezing-brain-back-to-life
PMC: “Cryoprotectants and Extreme Freeze Tolerance in a Subarctic Population of the Wood Frog”: https://pmc.ncbi.nlm.nih.gov/articles/PMC4331536/
ScienceDirect – Ice Crystal Formation: https://www.sciencedirect.com/science/article/abs/pii/S0011224010000222
Wood frog freeze tolerance research: https://www.nature.com/articles/s41598-021-98073-4









Who Will Cover City Hall Now? Democracy in the Age of News Deserts
By John Turley
On February 17, 2026
In Commentary, History, Politics
Were it left to me to decide whether we should have a government without newspapers, or newspapers without a government, I should not hesitate a moment to prefer the latter. But I should mean that every man should receive those papers and be capable of reading them. —Thomas Jefferson
I originally posted this article about a year and a half ago. I was concerned about the future of newspapers then and I’m even more concerned now. I’ve updated my original post to reflect recent losses of newspapers.
When I was growing up in Charleston WV in the 1950s and early 1960s, we had two daily newspapers. The Gazette was delivered in the morning and the Daily Mail was delivered in the afternoon. One of my first jobs as a boy was delivering The Gazette. It worked out to be about 50 cents an hour, but I was glad to have the job. (It was good money at the time.)
Ostensibly, the Gazette was a Democratic newspaper, and the Daily Mail was a Republican one. However, given the politics of the day there was not a significant difference between the two, and most people subscribed to both.
There weren’t a lot of options for news at the time. Of course, there were no 24-hour news channels. National news on the three networks was about 30 minutes an evening with local news at about 15 minutes. By the late 1960s national news had increased to 60 minutes and most local news to about 30 minutes. Although, given the limitations of time on the local stations, most of the broadcast was taken up with weather, sports, and human interest stories with little time left to expand on hard news stories.
We depended on our newspapers for news of our cities, counties, and states. And the newspapers delivered the news we needed. Almost everyone subscribed to and read the local papers. They kept us informed about our local politicians and government and provided local insight on national events. They were also our source for information about births, deaths, marriages, high school graduations and everything we wanted to know about our community.
In the 21st century there are many more supposed news options. There are 24-hour news networks as I’ve talked about in a previous post. And of course, there are Instagram, Facebook, X and the other online entities that claim to provide news.
There has been one positive development in television news. Local news, at least in Charleston, has expanded to two hours most evenings. There is some repetition between the first and second hour and it is still heavily weighted to sports, weather, and human interest, but there is some increased coverage of local hard news. However, this is somewhat akin to reading the headlines and the first paragraph in a newspaper story. It doesn’t provide in-depth coverage, but it is improved over what otherwise is available to those who don’t watch a dedicated news show. Hopefully, it motivates people to find out more about events that concern them.
The situation has become dire in recent months. The crisis that was building when I first wrote about newspapers has now reached catastrophic proportions. On December 31, 2025, the Atlanta Journal-Constitution published its last print edition after 157 years, making Atlanta the largest U.S. metro area without a printed daily newspaper. Think about that—a major American city, home to over six million people in its metro area, now has no physical newspaper you can hold in your hands.
Just weeks ago in February 2025, the Newark Star-Ledger, New Jersey’s largest newspaper, stopped printing after nearly 200 years. The Jersey Journal, which had served Hudson County for 157 years, closed entirely. These weren’t small-town weeklies—these were major metropolitan dailies that once served millions of readers. The Pittsburgh Post Gazette, founded in 1786, has announced that it will cease publication effective May 3, 2026.
Even more alarming is what just happened at the Washington Post. Just days ago, in early February 2026, owner Jeff Bezos ordered the elimination of roughly one-third of the newspaper’s workforce—approximately 300 journalists. The Post closed its entire sports section, shuttered its books department, gutted its foreign bureaus and metro desk, and canceled its flagship daily podcast. This is the same newspaper that brought down a presidency with its Watergate coverage and has won dozens of Pulitzer Prizes. The Post’s metro desk, which once had 40 reporters covering the nation’s capital, now has just a dozen. All the paper’s photojournalists were laid off. The entire Middle East team was eliminated.
Former Washington Post executive editor Martin Baron, who led the paper from 2013 to 2021, called the cuts devastating and blamed poor management decisions, including Bezos’s decision to spike the newspaper’s presidential endorsement in 2024, which led to the cancellation of hundreds of thousands of subscriptions. The Post lost an estimated $100 million in 2024.
The numbers tell a grim story. Since 2005, more than 3,200 newspapers have closed in the United States—that’s over one-third of all the newspapers that existed just twenty years ago. Newspapers continue to disappear at a rate of more than two per week. In the past year alone, 136 newspapers shut their doors.
Fewer than 5,600 newspapers now remain in America, and less than 1,000 of those are dailies. Even among those “dailies,” more than 80 percent print fewer than seven days a week. We now have 213 counties that are complete “news deserts”—places with no local news source at all. Another 1,524 counties have only one remaining news source, usually a struggling weekly newspaper. Taken together, about 50 million Americans now have limited or no access to local news.
Will TV news be able to provide the details about our community? The format of the newspaper allows for more detailed presentations and for a larger variety of stories. The reader can pick which stories to read, when to read them and how much of each to read. The very nature of broadcast news doesn’t allow these options.
I beg everyone to please subscribe to your local newspapers if you still have one. Though I still prefer the hands-on, physical newspaper, I understand many people want to keep up with the digital age. If you do, please subscribe to the digital editions of your local newspaper and don’t pretend that the other online sources, such as social media, will provide you with local news. More likely, you’ll just get gossip, or worse.
If we lose our local news, we are in danger of losing our freedom of information and if we lose that, we’re in danger of losing our country. For those of you who think I’m fear mongering, countries that have succumbed to dictatorship have first lost their free press.
I believe that broadcast news will never be the free press that print journalism is. The broadcast is an ethereal thing. You hear it and it’s gone. Of course, it is always possible to record it and play it back, but most people don’t. If you have a newspaper, you can read it, think about it, and read it again. There are times when on my second or third reading of an editorial or an op-ed article, I’ve changed my opinion about either the subject or the writer of the piece. I don’t think a news broadcast lends itself to this type of reflection. In fact, when listening to the broadcast news I often find my mind wandering as something that the broadcaster said sends me in a different direction.
In my opinion, broadcast news is controlled by advertising dollars and viewer ratings. News seems to be treated like any entertainment program, catering to what generates ratings rather than facts. I recognize that this can be the case with newspapers as well, but it seems to me that it’s much easier to detect bias in the written word than in the spoken word. Too often we can get caught up in the emotions of the presenter or in the graphics that accompany the story.
With that in mind, I recommend that if you want unbiased journalism, please support your local newspapers before we lose them. Once they are gone, we will never get them back and we will all be much the poorer as a result.
I will leave you with one last quote.
A free press is the unsleeping guardian of every other right that free men prize; it is the most dangerous foe of tyranny. —Winston Churchill
The only way to preserve freedom is to preserve the free press. Do your part! Subscribe!
And you can quote The Grumpy Doc on that!!!!
Sources
Fortune (August 29, 2025): “Atlanta becomes largest U.S. metro without a printed daily newspaper as Journal-Constitution goes digital”
https://fortune.com/2025/08/29/atlanta-largest-metro-without-printed-newpsaper-digital-journal-constitution/
Northwestern University Medill School (2025): “News deserts hit new high and 50 million have limited access to local news, study finds”
https://www.medill.northwestern.edu/news/2025/news-deserts-hit-new-high-and-50-million-have-limited-access-to-local-news-study-finds.html
NBC News (February 2026): “Washington Post lays off one-third of its newsroom”
https://www.nbcnews.com/business/media/washington-post-layoffs-sports-rcna257354
CNN Business (February 4, 2026): “Jeff Bezos-owned Washington Post conducts widespread layoffs, gutting a third of its staff”
https://www.cnn.com/2026/02/04/media/washington-post-layoffs
Northwestern University Medill Local News Initiative (2024): “The State of Local News Report 2024”
https://localnewsinitiative.northwestern.edu/projects/state-of-local-news/2024/report/
Northwestern University Medill School (2025): “News deserts hit new high and 50 million have limited access to local news, study finds”
https://www.medill.northwestern.edu/news/2025/news-deserts-hit-new-high-and-50-million-have-limited-access-to-local-news-study-finds.htm