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PavlikPaja

54 karma · joined January 9, 2018

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PavlikPaja··on Unexpected cracking found on critical Boeing 737 Next Generation part
https://www.distance.to/ says all around one hour. Why don't you build railroads in America? Such short flights should not exist.
PavlikPaja··on Startups are using insect larvae to produce protein-rich animal feed
I think pigs would eat most of the things used to feed the insects, so this step seems rather unnecessary.
PavlikPaja··on An Interactive Introduction to Fourier Transforms
Well this doesn't actually explain FFT at all, but it could be interesting to use the circle like thing on speech.
PavlikPaja··on Effect of High-Dose Vitamin D on Volumetric Bone Density and Bone Strength
Calcium, not vitamin D.
PavlikPaja··on Effect of High-Dose Vitamin D on Volumetric Bone Density and Bone Strength
There is no documented positive effect above 300mg/day.
PavlikPaja··on Effect of High-Dose Vitamin D on Volumetric Bone Density and Bone Strength
It isn't counterintuitive. Too much calcium (especially in the absence of mangesium) hurts your bones (and many other things)
PavlikPaja··on 94k Bitcoin (1B USD) transferred from unknown wallet to unknown wallet
Who the hell owns 1 billion dollars in bitcoin?
PavlikPaja··on Neutralizing Tear Gas
Fun fact: The Geneva convention forbids the use of tear gas at war.
PavlikPaja··on A history of Tetris randomizers (2018)
I think the best compromise would be a bag with let's say five of each piece; every time 7 pieces are dealt, you add a whole set to the bag.

No need for unnecessary complications - the pice becomes less numerous and less likely to come when there was a flood, and more common and more likely to come when there was a drought. You can even add a set after less than seven pieces, to increase randomness (and thus difficulty) over time.

PavlikPaja··on A history of Tetris randomizers (2018)
I think the best compromise would be a bag with let's say five of each piece; every time 7 pieces are dealt, you add a whole set to the bag.

No need for unnecessary complications - the pice becomes less numerous and less likely to come when there was a flood, and more common and more likely to come when there was a drought. You can even add a set aften less than seven pieces, to increase randomness (and thus difficulty) over time.

PavlikPaja··on Entropic Gravity
I like to think of gravity as an anti entropic force.

Logically the maximum entropy possible would be with each particle placed randomly with random momentum, but gravity makes that impossible on cosmic scales, as such a system would soon collapse because of gravity pulling the particles together.

We could see gravity as an entropic limiting force, with entropy increasing statistical forces increasing entropy on the microscopic scale being contradicted by entropy limiting gravitational effects on the super-macrostopic scale.

PavlikPaja··on Mankind's Inner Ant
So... do autistic people smell different?
PavlikPaja··on UFOs invading military airspace multiple times a month, but public won't be told
Yes, I read about it last week or so. It looked like a plate of asphalt though, this one is highly enhnanced somehow.
PavlikPaja··on UFOs invading military airspace multiple times a month, but public won't be told
>How did you do?

I don't know what I'm supposed to see here, but it looks suspiciously like the first photo ever taken.

PavlikPaja··on UFOs invading military airspace multiple times a month, but public won't be told
>$?? million aircraft >mic made of rotten potato
PavlikPaja··on Unveiling the first-ever image of a black hole [video]
I do (I think...) the bands are atifacts:

https://imgur.com/a/dhN9Pf9

PavlikPaja··on Fat, Not Meat, May Have Led to Bigger Hominin Brains
I suspect it's the result of adding iron to flour. For many peopel it irritates their gut and may have a whoel host of negative effects. There is no reason why it should be neccessary to add it into all food, it made flour based products basically toxic, since the body has no way to get rid of iron. Eating grains never had any negative effects before this "fortification" began.
PavlikPaja··on Fat, Not Meat, May Have Led to Bigger Hominin Brains
I suspect it's the result of adding iron to flour. For many peopel it irritates their gut and may have a whoel host of negative effects. There is no reason why it should be neccessary to add it into all food, it made flour based products basically toxic, since the body has no way to get rid of iron. Eating grains never had any negative effects before this "fortification" began.
PavlikPaja··on Why Do Buses Bunch?
There are several ways to avoid this.

1. The buses have predetermined stop times, signalled by a beep. You don't get on in time, you don't get on at all. Makes the delays predictable, regardless of the number of passangers.

2. Lines go from A to B and back, rather than in circles, so the delays cannot accumulate.

These are known and widely used. There is no reason why this should happen.

PavlikPaja··on DeepMind readies first commercial product
It isn't. It obviously is possible to drive a car. The problem here is you're trying to reconstruct image from less data than what is fundamentally possible. Compressed sensing is already as low as you can get, unless you prove it is possible to reconstruct the image accurately from even less data, then it's probably pointless to try use neural networks to decode it, and it's actually a bad idea anyway.

The problem with neural networks is that they can reconstruct something that looks "normal", not necessarily something that is accurate. The more abnormal the scan, the more likely it will get reconstructed as something that looks perfectly fine even when it's not.

PavlikPaja··on A Magician Explains Why We See What’s Not There
That acronym is well established in psychology.
PavlikPaja··on A Magician Explains Why We See What’s Not There
People outside the WEIRD (Western, Educated, Industrialized, Rich, Democratic) populations don't experience them. They are not shaped by evolution, but likely by the excess iron in western food that gets into the brain and shifts the brain chemistry towards a psychosis like state. (you can look up studies on rats, or I can look up some if you want)

People who are immune to it have Asperger's or something similar "on the spectrum".

Anyway, here is one: https://www.ncbi.nlm.nih.gov/pubmed/6138953

PavlikPaja··on A Magician Explains Why We See What’s Not There
One must always marvel at the mental gymnastics neurotypical people go to to explain why their hallucinations are actually a good thing.
PavlikPaja··on Quake II RTX: Re-Engineering a Classic with Ray Tracing Effects on Vulkan
It wasn't really 3D, you couldn't look up or down at all in the original doom I think and in the later games you could, but it got all horribly distorted, as the engine couldn't actually show the scene from different perspective.
PavlikPaja··on Quake II RTX: Re-Engineering a Classic with Ray Tracing Effects on Vulkan
They would as you could use the lighting to spot enemies you can't see directly, like you sometimes can in e.g. CSGO.
PavlikPaja··on Longevity and anti-aging research: ‘Prime time for an impact on the globe’
Iron is known to accumulate with age: https://www.ncbi.nlm.nih.gov/pubmed/23237353 It has even been proposed as the mechanism of caloric restriction: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2481398/ Here is some literature review that I just found: https://res.mdpi.com/metals/metals-05-02070/article_deploy/m... The absence of iron excretion mechanism shouldn't be controversial, here is the wikipedia article: https://en.wikipedia.org/wiki/Human_iron_metabolism#Iron_rec...

Both iron and manganese are transported by the same molecules and the nutrients inhibit each other, e.g.:https://www.ncbi.nlm.nih.gov/pubmed/2058577

The need of Mn for MnSOD also shouldn't be controverisal: https://en.wikipedia.org/wiki/SOD2

lanthanum changing the concentration of iron in the brain: https://www.sciencedirect.com/science/article/pii/S037842740...

Review of lanthanide effects, cites the higher affinity of certain lanthanides to proteins: http://www.actabp.pl/pdf/4_2000/1107.pdf

Lanthanum increaseing the capacity of neural transmission, (together with https://www.cell.com/cell/fulltext/S0092-8674(18)31646-5 https://www.nature.com/articles/d41586-019-00198-7?utm_sourc...: https://www.semanticscholar.org/paper/Acute-functional-neuro...

The longevity myths are well known, there are local myths of 100+ year old mountain men, (caucasus + some other range in south asia) and the myths of ancient "golden age" when people didn't age are almost universal, and many of the earliest written sources insist on "implausible" ages of certain people. Surprisingly many religions (virtually all, in fact) agree that people started aging when they previously were not and longevity was the normal state until aging was inflicted on people, only the reasoning why it happened varies. - all the abrahamic religions, a very important part of hinduism mentioned in many texts, the greek religion, sumerian, etc.

PavlikPaja··on Longevity and anti-aging research: ‘Prime time for an impact on the globe’
What you actually see if you study aging carefully is that it isn't anything like accumulation of damage the body cannot repair, it's the accumulation of damage the body can repair.

In fact, among the most consistent things you can see is the accumulation of iron, and to a lesser extent other minerals, such as calcium. The body seems to have a really big trouble regulating those minerals, it doesn't even have its own way to get rid of excess iron, the only way you can get rid of it is blood loss.

Now, what does it mean? One thing, the body doesn't really makes much distinctions when absorbing metals so that when there is excess iron, it cannot absorb other divalent metals without poisoning itself with iron. So it cannot absorb manganese without absorbing too much iron, and manganese is essential for preventing oxidative damage.

A second thing is, the experiments on rats show that lanthanum (and possibly other rare earths) change the homeostasis in the brain so that the amount of iron decreases, while it normally accumulates with age. Multiple rare earths have been shown to bind preferably to proteins, usually over calcium, but possibly also other metal ions, zinc seems to be a kind of universal element that can bind to almost any place that isn't taken. Neurons even seem to dramatically increase in capacity (with each neuron carrying its own signal, instead of many almost exactly the same thing over and over) as the concentration of lanthanum increases in vitro. (it's worth noting though, that lanthanum has been seen as an essential nutrient for decades in China, so if it cured aging, it would be known)

I thing we need to consider the possibility that there is no such a thing as aging, but is the result of some sort of imbalance caused by early agriculture, metallurgy, or whatever human activity that changed the environment in a way that our bodies, and other mammal bodies have no way of dealing with. The rumors of longevity from history and various isolated places are seen as myths, but they may not all be.

PavlikPaja··on Longevity and anti-aging research: ‘Prime time for an impact on the globe’
That makes no sense. Disposable things almost always have much lower value than thigns that last.
PavlikPaja··on Why Are Human Teeth So Messed Up? (2017)
It's more likely just race mixing, since if I remember correctly, native americans don't grow them.
PavlikPaja··on Meritocracy doesn't exist, and believing it does has bad effects
The problem is our obsession with positive results. Let's say there are 57 possible ways of doing something, only two of them work, but there is objectively not enough information to decide which one and testing each of them requires decades of work. Out of 120 people who tried, three stumble upon the correct solution, those are seen as geniuses and heroes, while the others are seen as failures who devoted their lives to misguided ideas, even though the work they did was identical.

Similar with experiments. Good experiments are those that produce expected results, but those teach you nothing. A well designed experiment is in fact the one whose results are as unpredictable as possible, as it has the highest chance of providing new information. While an experiment designed to achieve a predicted result can only teach you something new by sheer accident, when the prediction turns out to be wrong.

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