Wednesday, February 4, 2026

You 2.0: Trusting Your Doubt - Hidden Brain

Bobby Parmar, author of "Radical Doubt," illustrates doubt through General Eisenhower, who publicly expressed confidence about the success of the D-Day invasion to maintain morale among troops and the public. Privately, he prepared a contingency plan, including a draft of a letter taking responsibility if the invasion failed. This demonstrated his use of doubt to anticipate possible failure and plan accordingly.

The brain's "pause and piece together" system involves the prefrontal cortex, which slows down decision-making to analyze information carefully. This process helps integrate new evidence and reassess assumptions before acting. Under stress, the amygdala can override this system, triggering quick, instinctive responses instead. Effective doubt relies on balancing this reflective pause with emotional regulation.

When judging ourselves, we focus on our intentions—what we meant to do—because we have access to our internal thoughts and motivations. Others only see our external actions and outcomes, lacking insight into our intentions. This difference can cause misunderstandings, as people may judge us harshly based on results without knowing our reasons. Recognizing this gap helps reduce defensiveness when receiving feedback.

Parmar argues that doubt is particularly valuable in complex situations. He introduces "Anomalizing," a strategy of noticing early warning signs, and advocates for using doubt to examine various solutions rather than rushing to certainty.

Novices often treat intuition as definitive, experts use it as a starting point for questioning and strategy development. When Captains and The rentals were asked about their plans, captains had an intuition and then sought to justify or rationalize that with data after they made the intuitive decision (promoting confirmation bias) while generals would ask questions and consider how each plan might fail to evaluate it...overconfidence and the need for certainty can blind individuals to potential risks, while confirmation bias often prevents people from seeking contradictory information after making decisions. Experts use their intuition as a hypothesis, ask questions, and build flexible strategies.

"Anomalizing" is the practice of actively identifying and focusing on anomalies—unexpected or unusual signs that deviate from normal patterns. It helps in early detection of potential problems or risks by questioning assumptions. This approach encourages critical thinking and prevents premature conclusions. 

Social media feeds and rewards the feeling of being right and having the answer. People who focus on getting right answers and who crave certainty tend to dismiss different perspectives, underestimate risks, and become overconfident.



Taxes from immigrants

The US immigrant population generated more in taxes than they received in benefits from all levels of government every year from 1994 to 2023. 

Sunday, February 1, 2026

Saturday, January 31, 2026

Tethered wind turbine aloft


2000m high generated almost 400kWh in just half an hour. which is about 0.75MW. Regular turbines on the ground now generate upwards of 3 MW on land, and as high as 13 MW in 25 mph winds in ocean-based platforms, so this system is curtailed by weight that it can lift aloft with its helium aerostat design. 

Sunday, January 25, 2026

Dire predictions about the future of AI.

https://youtu.be/gIxq03dipUw?si=xkJmD3OuYa3tMAds

11:02 Once AI is embedded into infrastructure,  can we switch AI off? 
People assume it's neutral, safe, and Uber human control. None of that is true. 

14:24 AI alignment (with human goals of human preservation) is really important. AI itself predicts the chances of solving "alignment" within 5 years is 10-25%. 

15:18 (Geoffrey Hinton) "If we can't figure out a solution to how we can still be around when they're much smarter than us and much more powerful than us, we'll be toast." 

Tuesday, January 20, 2026

Sargassum concrete blocks

Pelagic Sargassum blooms have massively increased, littering Caribbean beaches - perhaps fueled by nitrogen runoff from Amazon deforestation. 
At the right proportions, sargassum with its lignin, cellulose, and polysaccharides
3:16 acts like rebar reinforcing the concrete blocks, making them twice as strong as conventional ones. 
The bricks also have 4:07 half the thermal conductivity of regular bricks, reducing air conditioning costs. 

Monday, January 19, 2026

Get exercise! Even if it's just a few minutes a day.

Considering that it is unlikely for all individuals to achieve the WHO physical activity recommendation of 150 min of moderate-to-vigorous-intensity physical activity (MVPA) weekly, our data underscore the large impact of realistic and achievable behaviour changes on population health. If the least active 80% of participants had increased MVPA by 5 min/day or reduced sedentary time by 30 min/day, 10% and 7% of all deaths, respectively, might have been avoided during the follow-up period.

Brief bouts of device-measured intermittent lifestyle physical activity and its association with major adverse cardiovascular events and mortality in people who do not exercise: a prospective cohort study. 2026
"25,241 adults...wore an accelerometer on their wrist...mean follow-up duration of 7.9 years, 824 major adverse cardiac events (MACE) and 1111 deaths occurred. Compared with bouts of less than 1 min, mortality risk was lower for bouts of 1-3 min (hazard ratio [HR] 0·66), 3-5 min (HR 0·56), and 5-10 min (HR 0·48)" 

Sunday, January 11, 2026

No ban on DJI drones after all.

The U.S. Commerce Department said on Friday it has withdrawn a plan to impose restrictions on Chinese drones...


Sleep optimization test

a smart mattress cover that uses sensors and AI to personalize your sleep climate by adjusting temperature for better deep and REM sleep
It begins with a test - an at-home sleep analysis using a sensor patch (the patch collects data on your sleep patterns, heart rate, and breathing, focusing on core body temperature cycles) to understand your natural temperature patterns and improve the system's adjustments for better rest. It's a consumer-focused wellness tool aiming to enhance sleep quality by controlling the most controllable factor: body temperature. https://www.facebook.com/share/1CAgUBU9kF/

Friday, January 9, 2026

Junior miner boom and bust

AI says "parabolic, last-gasp" rallies can sometimes constitute 20% to 50% or more of the total move in the final days or weeks before a crash...Junior miners often experience even more dramatic, last-minute vertical spikes (a 40-fold rise with sometimes 6% over the final day) compared to major producers, meaning the final, pre-crash day can see extreme, unsustainable gains before a 75%–90% crash.Here are some examples.

"FURY", "UAMY", "GSM", "CRML
Can have 40% drops on the way to blow-off top. 

Wednesday, January 7, 2026

Skating on thin ice


Reminds me of this sound:



What happens to new cars that don't sell?

https://youtu.be/MGvk8VXrVvI?si=hBW83SgqwFgXbe2x

  1. Sell within 90 days
  2. "Punching" the car - reporting it was sold (to prevent loan fees) then selling it as a used model, with the warranty clock already running. Dealer gets a bonus for a quick sale. 
  3. "Sell" it to the service department as a loaner car, then sell it used months later. Often sells faster at higher profit margin as a "certified pre-owned" (CPO) than of it remained new on the lot. 
  4. Dealer trades - ship the car to a hotter market
  5. Wholesale auction: sell at a loss but avoid loan penalties. 
  6. Sell to rental fleet. Manufacturer keeps rights to buy vehicle back and sell as used. 
  7. Gray market export - "bought" by intermediaries who ship vehicles overseas where demand is higher. 
  8. Emerging market export. Often it's "punched" first (#2 above) then expected as a used vehicle to save on duty. 
  9. Scrapped. To avoid tarnishing the brand by flooding the market at low prices. 
When dealers add "market adjustment fees" and so on, it's too pay for all these costs invited on vehicles that don't sell. 

Thursday, January 1, 2026

Las Vegas Tunnel dwellers

https://youtu.be/7MkAs99O1LQ?si=EdRn5UHY2wQ432Ep

Hundreds of people living in total darkness in tunnels under Las Vegas - under constant threat of flooding from rain overflow. Crime, violence, and they are rampant. 
"Shine a light" program aims to help by providing supplies and Instant Placement with Access to Treatment and Housing program, offering long-term case management, housing assistance, job development, and essential supplies. 

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