One Fat Can Prevent Dementia — If You Eat It Long-term

https://www.youtube.com/watch?v=7UsRrTwXe3Y&t=469s

The universe is Alive within us

Re: The most beautiful idea in physics

I recently had an idea about this that might be more difficult for most people to wrap their brain around.  It is more mind bending.

My idea depends upon whether the laws of physics are deterministic.  Quantum theory claims that the universe is random on the quantum scale.  However, I agree with Einstein that this reflects a physical reality that we are unable to detect and are unaware of.  This is called, "hidden variables", and recently scientists have claimed to have disproven "local hidden variables".  However, this claim I find questionable.

If the laws of physics are deterministic then it means that everything is predictable regardless whether or not it actually exists.   Given a set of inputs and rules, you get the same outputs.  For example, mathematical concepts like Pi would still exist even if we had never discovered them.  Pi would still exist if we had never drawn a circle.  (I agree with people who claim that things are not invented, but discovered.  This also leads to much discussion about free will, claiming that we need a random universe to have free will.)

By this reasoning, if the universe is deterministic, we would be unable to distinguish whether we are real or just a mathematical pattern.  Is the Mandelbrot set real, or just a mathematical pattern?  It is "real" in the sense that mathematics produces it.   The pattern would still be there if we had never discovered it.

Best wishes,

John Coffey

Fwd: The most beautiful idea in physics

FYI.

---------- Forwarded message ---------

On Sun, Nov 23, 2025 at 8:17 PM Grant wrote:

Incredible nature is one reason I believe in God.  As stated in the interview, "ït all comes together"  Physics is beautiful. 

---------- Forwarded message ---------

From: John Coffey

To: Grant

Grant,

I have a similar viewpoint.  I am not an atheist.  I like pantheism, but I am more of an agnostic.

I tend to believe in a generic concept of God, but this presents philosophical questions that I am not comfortable with.  Those would be, "Who made God?" and "Why is there something instead of nothing?"   My point is that we believe that all events have a cause, so every event must have had another event that preceded it.  Does this go back in time forever?   Every possible answer I can come up with makes no sense.  Either there was a first event or there wasn't.  If there was a first event, what caused it?

If we believe that God is eternal going in both time directions, then we might as well believe in a universe that is eternal in both time directions.  Believing in God might be wishful thinking.

--

Best wishes,

John Coffey

http://www.entertainmentjourney.com

Pizza was Once considered Poisonous

https://www.youtube.com/watch?v=Edo12ppSFCs

Sumerian Bread 2700 BC

https://www.youtube.com/watch?v=rgOI17M0QGA

Tick bite causes meat allergy death

https://www.dailymail.co.uk/health/article-15309551/jetblue-pilot-father-burger-brian-waitzel.html

My uncle has had this condition for a few years.

Secret Tool for Drawing

https://www.youtube.com/watch?v=psxsYC3VnqI

A New Way to Hack Fasting’s Anti-Aging Pathways… without even Fasting!

The Truth Behind McDonald’s Fries

https://www.youtube.com/watch?v=msYy4STFh40

How Does Bent Time Make Gravity?

https://www.youtube.com/watch?v=U_sI9agWmEw

I have a hard time accepting the concept of "space-time." To me, space and time seem like fundamentally different things. We can't move through time the same way we move through space.

The video says that time bends more than space.  The time dilation we experience on the surface of planet Earth is around 0.00000001%.  Is this insignificant bending of time enough to cause 1G acceleration?

General Relativity is a useful model.  But if we follow it blindly, we might be ignoring other possible models.

The Zebra is UNDERRATED

https://www.youtube.com/watch?v=mx8V5fEnhmc

Scientists Revive Prehistoric Worm After 46,000 Years

https://www.youtube.com/watch?v=COP5vCQbEkw

I like the Jurassic Park music.

The Red Kangaroo is TERRIFYING

https://www.youtube.com/watch?v=EsO6E4vTRqQ

New pressure method captures 99% of CO2 for just $26 per ton

https://interestingengineering.com/innovation/pressure-method-carbon-capture

"In each stage, more of the carbon dioxide bubbles out and can then be compressed for permanent storage in underground formations."

That sounds like a drawback to me.  Underground storage is likely to be expensive, and it may not be truly permanent, since CO₂ could potentially leak out.

I strongly believe it's a shame to waste carbon dioxide.  It's a valuable resource because it acts as plant food, boosts crop yields, and contributes to the greening of deserts.  It also warms the planet slightly.  Before that warming becomes a serious problem, we reportedly will likely run out of fossil fuels — in roughly 125 years.  Most fossil fuels may be depleted by around 2100, and we have only about 50 years of oil reserves left.

Neil degrasse Tyson

https://www.youtube.com/watch?v=pLzOImXSVKo

0.0002 Seconds That Save Starship

https://www.youtube.com/watch?v=gBoOcNZuNZk

Termites

https://www.youtube.com/shorts/UFRHliMf4qo

14 Forgotten Sci-Fi Films Of The 1980s That Predicted The Future

https://www.youtube.com/watch?v=cKHMQSJ3Sec

Most of these movies are not particularly good.

In the comments section, people complained that the narration is AI generated, which is ironic.

I don't think that the video is as insightful as it claims to be.  Common tropes of science fiction going back a hundred years, such as the movie Metropolis, are about the over reliance on technology, machines that can think for themselves, and those machines turning on their creators.  In fact, it is hard to find science fiction that doesn't touch on at least one of these ideas. 

Hardest Part of a Rocket Launch

https://www.youtube.com/watch?v=Wpq9lSEplBs

Shape of a photon

https://www.youtube.com/shorts/Y_Z3vq3l5zU

https://www.livescience.com/physics-mathematics/quantum-physics/the-shape-of-light-scientists-reveal-image-of-an-individual-photon-for-1st-time-ever

It seemed questionable to me that photons would have a shape.  Photons are electromagnetic waves.  The picture describes the shape of the wave in a particular circumstance.

If I can make an analogy, the subatomic level is like the surface of a turbulent ocean.  All matter behaves like waves.  Most of what is going on we can't perceive, and we only see the big waves.

No, photons do not have a fixed, measurable volume because they are quantum particles that also behave as waves. While they can be confined to a specific region of space, they are not point-like objects with a defined surface. Instead, their "size" is better understood by their wavelength and frequency or as a probability distribution of where the photon is located. 

Why photons don't have a volume

• Quantum wave-particle duality: 

  Photons exhibit both wave and particle properties. As a wave, they don't have a discrete volume like a ball but exist as a disturbance in an electromagnetic field. As a particle, they are an elementary excitation of that field, not a point-like object with an intrinsic size. 
• Probability, not a physical boundary: 

  The "location" of a photon is described by a probability distribution, meaning there isn't a hard edge you can measure. A photon doesn't have a "shell" that occupies a specific space, so you can't measure its volume directly. 
• Wavelength and frequency: 

  A photon's properties are described by its wavelength and frequency, not its volume. For example, high-frequency photons have a shorter wavelength but are not considered "smaller" in a volumetric sense. 
Confined but not a fixed size: 
While a photon can be confined to a specific region (for instance, in an optical cavity), the photon itself is not what gives the cavity its volume. Instead, a photon with a certain energy can be thought of as existing within that space, much like a wave can exist within a specific area of a pond. 

Can lifting weights keep your telomeres young? The science behind it

"More time spent on strength training was linked to longer telomeres."

https://www.yahoo.com/lifestyle/articles/lifting-weights-keep-telomeres-young-191427952.html

There is a difference between correlation and causality.  It might be that people who lift weights have healthier lifestyles.

However, everybody tells us  to do strength training as we get older.

If Space is Full of Stars, why is it so Dark?

https://www.youtube.com/watch?v=DmnhD93Aius

How Science is Fighting the Aging Process

https://www.pressreader.com/uk/daily-mail/20251104/282080578086365

Why Our Solar System Shouldn’t Exist…

https://www.youtube.com/watch?v=CZfLZ1EoRGk

Reportedly, gas giants can move toward their star in a process called planetary migration. This movement can disrupt the inner planets of a solar system, sometimes even flinging them away from the star. However, the theory is that this didn't happen with Jupiter because Saturn's gravitational pull counteracted its inward drift. As a result, Earth remained in its ideal position—and life was able to develop.  

Weed

https://www.youtube.com/watch?v=Brm71uCWr-I

I didn't know its use was so common.

I have no desire to alter my consciousness and possibly damage my brain.  Even if it is "fun", there are other ways to have fun.   My opinion is that any form of intoxication just makes us dumber.

I have taken pain medication when I have needed it, but I would rather not take it if I don't have to.

the wonderful things you learn in your school

Bear in mind that the wonderful things you learn in your schools are the work of many generations. All this is put in your hands as your inheritance in order that you may receive it, honor it, add to it, and one day faithfully hand it on to your children.

- Albert Einstein

The Moon's Name

https://www.youtube.com/watch?v=2eX9MQRo4Cs

The Most Mind-Blowing Study on Fiber I’ve Ever Read

https://www.youtube.com/watch?v=KjEvuDQnqWQ&t=331s

Space doesn't look like that

https://www.youtube.com/shorts/pS5Cvpz7-i4