life-altering inventions become inevitable when the body of knowledge grows
just imagine what the AI era will unlock
@elonmusk
at my last company we paid an agency $25k to built our website on Wordpress.
Just built my own with @framer for under $200.
Game changer.
real life equivalent of turning your phone brightness down
Your visual cortex burns 44% of your brain's energy budget. Turning off the lights in the shower is the fastest way to slash that load to near zero.
Your brain is 2% of your body weight but burns 20% of your total energy. Visual processing alone eats almost half of that. Every photon hitting your retina triggers a cascade of neural signaling that demands oxygen, glucose, and ATP at rates higher than almost any other cognitive function.
When you kill the lights, you're removing the single largest energy load on your cortex. That freed-up metabolic capacity gets reallocated.
This is where it gets interesting. A 2022 study from the Laureate Institute for Brain Research measured what happens when you strip sensory input from anxious patients. High-frequency heart rate variability, the gold standard marker of parasympathetic activation, increased significantly compared to controls. Blood pressure dropped. Breathing rate fell. The nervous system shifted from sympathetic dominance to parasympathetic mode within minutes.
The warm water adds a second mechanism. Core body temperature rises during the shower. When you step out, temperature drops rapidly. That cooling signal triggers melatonin production and primes the circadian system for sleep. Layer darkness on top: no photons suppressing melatonin through the retinal ganglion cells, no blue-light signaling to the suprachiasmatic nucleus that it's still daytime.
The shower is doing three things simultaneously. Reducing cortical energy demand by eliminating visual input. Activating the parasympathetic nervous system through sensory reduction. Triggering thermoregulatory sleep signaling through the heat-then-cool cycle.
A $0 float tank that takes 10 minutes.
Think in probabilities
Bayesâ theorem is probably the single most important thing any rational person can learn.
So many of our debates and disagreements that we shout about are because we donât understand Bayesâ theorem or how human rationality often works.
Bayesâ theorem is named after the 18th-century Thomas Bayes, and essentially itâs a formula that asks: when you are presented with all of the evidence for something, how much should you believe it?
Bayesâ theorem teaches us that our beliefs are not fixed; they are probabilities. Our beliefs change as we weigh new evidence against our assumptions, or our priors. In other words, we all carry certain ideas about how the world works, and new evidence can challenge them.
For example, somebody might believe that smoking is safe, that stress causes mouth ulcers, or that human activity is unrelated to climate change. These are their priors, their starting points. They can be formed by our culture, our biases, or even incomplete information.
Now imagine a new study comes along that challenges one of your priors. A single study might not carry enough weight to overturn your existing beliefs. But as studies accumulate, eventually the scales may tip. At some point, your prior will become less and less plausible.
Bayesâ theorem argues that being rational is not about black and white. Itâs not even about true or false. Itâs about what is most reasonable based on the best available evidence. But for this to work, we need to be presented with as much high-quality data as possible. Without evidenceâwithout belief-forming dataâwe are left only with our priors and biases. And those arenât all that rational.
Renaissance Bro retweeted
A win wouldâve been nice, but it was still the greatest night of my football life. Itâs the moment that I will always remember when the real reason for football clicked in. Football isnât just a game played with a ball on a field. Itâs not just 3-D chess with men colliding. Itâs human connection. Itâs family genetics. Itâs an allegiance passed from generation to generation. I witnessed my son standing in the same place that I stand, screaming at a black square with color pixels for an orange and blue team as if somehow his cries could affect the outcome of the game. Last night was the night that I knew I had done my real job as a Bears fan. I pass the game to the next generation. I shared a forever loyalty. He is fully on his way on a life time journey or highs and lows, love and loss, passion and grit, strategy and might, joy and disappointment. And when the day comes where my son and I are at an impasse. We can always talk about the Bears.
Someone remind Odunze heâs a 1st round pick and can catch footballs
#BearDown
Excellent write up, and if legit, truly the âholy grailâ breakthrough for batteries needed to make EVs / eVTOLs economically viable
my logical counterpoint: how could a tiny Finnish company have made the breakthrough and @Tesla not be all over this. An investment at the least.
This battery is about to change the world in 3 months, or make this guy a fool | Fred Lambert, Hacker News
Donut Lab lit the EV and energy storage industry on fire last week with its announcement of a 400 Wh/kg solid-state battery cell that can last for 100 years. At face value, if true, we are looking at the single most disruptive announcement in the history of the electric vehicle industry and energy storage as a whole.
We arenât just talking about a better motorcycle battery. If the claims of a 5-minute charge, 100,000-cycle life, and ~400 Wh/kg energy density are accurate and scalable, as Donut Lab claims, this is the holy grail of energy storage.
Battery breakthrough announcements generally donât catch fire like this, but Donut Labâs did because it said that the cell was already in production and will be in a production vehicle, Vergeâs electric motorcycle, this quarter. It gave credibility to the claim, pushing everyone to report on it.
Now, we have interviewed Donut Labâs CEO and investigated the technology. At this point, it looks like either this battery changes the world within the next 3 months, or it will make the CEO look like a fool. In this article, we discuss the impact of the battery, whether real or not, as well as clues about the secret sauce behind its chemistry.
The Holy Grail of Energy Storage
Consider the implications. A battery that lasts 100,000 cycles is effectively immortal in human terms. You could charge it every single day for 270 years, and it would still be working. It means the battery outlives the vehicle, not just once, but ten times over. It changes the economics of transportation entirely: you buy the battery once, and you swap it into your next five cars.
The power density required for a 5-minute charge and the 400 Wh/kg of energy density opens the door to commercial electric aviation, a sector currently strangled by the weight and slow charging speeds of lithium-ion. It solves the grid storage problem by offering a medium that doesnât degrade, meaning utility companies could amortize the cost over a century rather than a decade.
If this is real, the internal combustion engine didnât just die today; it was buried 100 feet deep, and every other battery is not far behind. But, and this is a massive âbutâ, extraordinary claims require extraordinary proof, and Donut Lab has yet to release that proof. And that brings us to the man making them.
The Man Betting His Reputation
I spoke with Marko Lehtimäki, the CEO of Donut Lab and Chairman of Verge Motorcycles. My goal was simple: ask him about the chemistry behind his battery and, if that doesnât work, look him in the eye and figure out if heâs selling vaporware or if heâs sitting on the breakthrough of the century.
Marko isnât a random guy shouting about a battery breakthrough that will change the world.
He is a legit entrepreneur. A computer scientist who built a no-coding app builder years before âvibe codingâ was even a thing and sold it to SAP. After the successful exit, he became an investor and serial entrepreneur with his biggest, or most well-known, company being Verge Motorcycles, which has real products on the road.
By announcing that this âmiracle batteryâ is already in production and will be shipping in customer vehicles within 10 weeks, he is betting his entire personal reputation on this technology. If he misses this timeline or if the specs are fake, Donut Labs and Verge Motorcycles might not survive the credibility loss. He has a lot to lose here.
In my article about the battery announcement last week, I noted that Markoâs presentation was incredible. He basically described a perfect battery: record energy density, incredible charge rate, unprecedented longevity, no rare metals, a cost lower than traditional Li-ion cells, and in scalable production right now. Sounds too good to be true?
The only thing he didnât share was details about the chemistry, beyond saying it doesnât use lithium or other rare metals.
Whatâs the point of protecting the chemistry if the battery is already in production and it will be in a product shipped this quarter? If thatâs true, the battery will be reverse-engineered before the snow completely melts.
We discussed it with Marko during our interview. His logic is that once the bikes ship, competitors will tear them down and figure it out anyway. But that wonât happen for another 10 weeks or so, and the head start is critical for a technology this disruptive.
In the meantime, Donut Labâs goal with the announcement was to get the attention of OEMs and ship them battery packs for validation. Marko said:
We are right now shipping demo packs to OEMs under NDAs and under tight disclosures so that they can test that all of that is true, which serves our business very well [better than disclosing the chemistry].
But these programs with OEMs are likely to take a long time before they become public.
Shorter term, thereâs Verge Motorcycles shipping bikes with the battery by the end of the quarter. Before that, Marko also said that we should soon see third-party testing of those cells:
We rather right now ship it to authorized research and science center that tests everything without opening it and telling everybody whatâs in there.
In short, we should have a good idea whether the claims are true or not in just a few weeks no matter what.
What does Marko, or Donut Lab, have to gain by lying about this? I also discussed this with Marko and the only thing I could come up with is if he happens to be raising capital right now, but he shut that down:
There are a million investors chasing us right now, but we are literally not talking to anybody. We tell investors that we can discuss terms after we have done all our disclosures.
Marko insisted that Donut Lab is not taking any investment until they have proven their cells work.
In short, itâs hard to find an upside for Donut Lab in making this announcement if the claims are not true. It doesnât mean that they are, but it makes you think.
The Investigation: What Is the âDonut Batteryâ?
So, what is the secret sauce? Marko wouldnât say, but after digging into public records, supply chains, and research papers, I believe we have a pretty good idea.
Let me preface this by saying that Iâm not a chemist or physicist, but Iâve been a journalist covering electric vehicles for more than a decade, and Iâm pretty good at connecting the dots, and in this case, Iâve had the help of a couple of great sources, too.
Iâm not saying that this is the Donut Lab battery, but since they are not sharing much, we have to speculate, and all evidence points to a Finnish nanotechnology startup called Nordic Nano and its Chief Scientist, Dr. Bela Bhuskute.
Donut Lab invested in Nordic Nano in October 2025, just months before this announcement. At the time of writing this, the press release has fewer than 200 views. The announcement went under the radar, and while Marko said that Nordic Nano is more of a âsolar companyâ during our interview, the announcement mentions both solar and energy storage.
Dr. Bhuskuteâs research at Tampere University focuses on amorphous Titanium Dioxide nanostructures, which could benefit many different technologies, including batteries.
It fits the âmiracleâ specs perfectly:
- 100,000 Cycles: Traditional solid-state batteries are crystalline (like a brick wall) and crack when ions rush in. Dr. Bhuskuteâs amorphous Titanium Dioxide is disordered (like a sponge) and âbreathes,â allowing it to expand and contract without breaking.
- 5-Minute Charge: This chemistry stores energy via âpseudocapacitance,â which is basically like Velcro. Ions stick to the surface almost instantly rather than having to burrow deep inside the material.
- The Manufacturing: Nordic Nano uses a ânanofluidâ printing process for its solar product using the technology. This aligns with Donut Labâs description of a âclay-likeâ material that enables an easier manufacturing process. Some call this âbattery printingâ, which could explain Donut Labâs ability to bring this to production in record time.
When I asked Marko for the volumetric energy density (Wh/L), he claimed he âcouldnât rememberâ. Volumetric energy density is one of the few specs that Donut Lab hasnât released. This battery is lighter than lithium-ion, but it could be bigger due to the amorphous nature of the titanium dioxide.
However, the CEO claimed it has a higher volumetric density than traditional Li-ion batteries, without providing a specific number.
If thatâs true, not only could electric vehicles and energy storage switch to this new chemistry, but even personal electronics, such as smartphones.
In 2025, Nordic Nano has been making moves, including securing a former large retail location in Imatra, Finland, near the Russian border:
It could be where the company has set up production.
Following investment from the Finnish government, Nordic Nano had to elaborate a bit on its products and confirmed that it is working on âsolar energy systems and energy storage solutionsâ:
The companyâs range of products includes two product families: solar energy systems and energy storage solutions: The ultra-thin and flexible solar film collects twice the amount of energy compared to traditional silicon-based solar panels. Solid-state salt batteries are manufactured by printing from nanofluid, which enables the efficient use of space and the production of batteries in varying shapes.
Furthermore, the company confirmed that it is using a âscreenprintingâ manufacturing method. This is not new. Other companies have produced battery cells with this technology with varying degrees of success.
It appears that the bet is that the amorphous rather than crystalized titanium dioxide nanostructure could be more easily adapted and scaled with this manufacturing technology.
Electrekâs Take
Iâm naturally skeptical, and this screams âtoo good to be trueâ, but I canât find anything that categorically rejects the claims.
I get battery breakthrough announcements in my inbox every week, and most of the time they never amount to anything. If I decide to spend some time researching them and talking to experts, I generally quickly hit a problem or two that make them commercially unviable.
This announcement is different. We canât really investigate the actual breakthrough; we can only speculate about it, since it is guarded.
Markoâs logic for guarding the chemistry is sound, and the incentives to lie about what they have arenât clear if he is not currently raising money.
Then, because they claim this is already in production and will be in a deliverable product within weeks, we will know whether the claims are true in short order, and their reputations, especially Markoâs, are on the line.
During my interview, Marko didnât seem too worried about it. It doesnât sound like someone who needs to quickly figure out how to deliver this, but rather someone who has a couple of aces in their hand and is looking to maximize them.
Itâs also strange that this innovation and then production quickly comes from a relatively small company.
I thought researching Donut Lab would make me more skeptical about the claims, but itâs the contrary.
It confirms that their technology stems from years of research, backed by university and government funding for its commercialization.
Could it be that this critical research went under the radar and a small electric motorcycle startup in need of a significant bump in energy density stumbled upon it? Then, a savvy entrepreneur quickly found a way to optimize the impact of this potentially groundbreaking tech by spinning out a startup from the motorcycle company to market the battery to a broader market. Maybe?
This could be real, or it could be hype. Again, Iâm still skeptical, but I canât point to anything specific that would disprove any claim made about this miracle battery.
Again, if this is true, we are talking about a complete reset of the entire energy and transportation sectors. Donut Lab would become one of the biggest companies in the world. A Nobel Prize would be coming to Dr. Bhuskute and her colleagues in the near future.
If itâs not, Marko and Donut Labâs reputation would be destroyed.
There might also be a middle conclusion where the battery is nearly as good as they claim, but when you ramp up production, other problems arise, such as scrap, which has been the undoing of another company that recently tried screenprinting batteries.
Who knows? But it sounds like we should find out soon. Within weeks, we should get independent verifications of the specs. Then the bikes get delivered within months. You can fake a presentation, but there are things you canât fake.
electrek.co/2026/01/14/batteâŚ
ChatGPT was built to keep you calm. While you interact with the interface, behind the scenes, the intelligence grows.
Should be apparent, but still creepy
instagram.com/reel/DTiQ4yCDvâŚ
Renaissance Bro retweeted
A founder I really lookup to does "stay interviews" instead of exit interviews.
Once a quarter, they sit down with every person on the team and ask 3 questions:
1/ What would make you leave in the next 6 months?
2/ What's the gap between what you expected this job to be and what it actually is?
3/ If you were CEO, what would you change first?
I wish I did this when running Broadlume, it's an incredible way to gut check the internal pulse of the company.
















