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Neuroscientist Explains 1 Concept in 5 Levels of Difficulty

Ickster says...

Hey, dubious. I don't know nearly as much about the details as you do, but I was skeptical when he made the claim to the grad student that inter-neuron transmission was binary. My layman's understanding is that there's a sort of "signal strength" between neurons that can decay or be amplified depending on how those pathways get used. Each signal affects others, and so on--it's much more a very complex feedback system utterly different than the binary instruction pathways used by our current computers.

Ricky Gervais And Colbert Go Head-To-Head On Religion

scheherazade says...

Actually, matter does appear and disappear from and to nothing. There are energy fields that permeate space, and when their potential gets too high, they collapse and eject a particle. Similarly, particles can be destroyed or decay and upon that event they cause a spike in the background energy fields.

One of the essential functions of a collier is to compress a bunch of crap into a tiny spot, so that when enough decays in that specific spot it will cause such a local spike in energy that new particles must subsequently be ejected (particles that are produced at some calculated energy level - different energy levels producing different ejections).

*This is at the subatomic level. Large collections of matter don't just convert to energy.

I know plenty of people roll eyes at that, but the math upon which those machines are built are using the same math that makes things like modern lithography machines work (they manipulate tiny patterns of molecules). You basically prove the math every time you use a cell phone (thing with modern micro chips).

...

But that's beside the point. If there ever was 'nothing', the question isn't "whether or not god exists to have made things" - it's "why do things exist". God could be an answer. As could infinite other possibilities.

...

Personally, eternity is the answer I assume is most likely to be correct. Because you don't have to prove anything. The universe need not be static - but if something was always there (even just energy fields), then there is an eternity in one form or anther.

Background energy and quantum tunneling are a neat concept (referring to metastability). Because you can have a big-bang like event if the background energy level tunnels to a lower state, expanding a new space starting at that point, re-writing the laws of physics in its area of existence. Meaning that our universe as we know it can simply be one of many bubbles of expanding tunneling events - created at the time of the event, and due to be overwritten by another at some point. Essentially a non-permanent local what-we-percieve-as-a-universe, among many. (I'm avoiding the concept that time and space are relative to each bubble, and there is no concept of an overarching time and place outside of any one event).

(All this comes from taking formulas that model measurements of reality, globing them into larger models, and then exploring the limits of those models at extreme values/limits. ... with a much lagging experimental base slowly proving and disproving elements of the model (and forcing model refinement upon a disproval, so that the model encompasses the new test data))

-scheherazade

shinyblurry said:

Why is there something rather than nothing is the essential question, which Ricky Jervais dodged.

There are only two choices: either there is something eternal or everything spontaneously was created from nothing, which is impossible.

If there is something eternal, that opens a whole host of new questions.

hate speech laws & censorship laws make people stupid

enoch says...

@ChaosEngine
agreed.
context matters and i think being a decent human being plays a large role in that dynamic.

people tend to attempt to break down complex ideas and/or ideologies into more easily digestible morsels.this "twitter speak",in my opinion,is largely responsible for the decay of human interactions.

we all are biased.
we all hold prejudices,and preconceptions based on our learned experiences.
which are subjective.

we see the world through the lens of our own subjectivity and even the most open minded and non-judgemental person,when trying to sympathize/empathize with another person, will use their own subjective understandings in order to understand that person.

this tactic,which we all employ,will almost always fall short of true understanding.

so we rely on words,metaphors,allegory etc etc in order to communicate fairly complex emotions and experiences.

what brendon o'neill is pointing out,is that when we start to restrict words as acceptable and unacceptable,we infantilize our interactions.

words are inert.
they are simply symbols representing a thing,action or emotion.
it is WE who apply the deeper meanings by way of our subjective lens.

i am not trying to make something simple complicated,but bear with me.
a rock will always be a rock,but a cunt has a totally different meaning here in the states than in britain.(love you brits,and cunt is a brilliant word).

the problems of culture,region,nationality or race all play a role in not only how we communicate but how that communication is received ...and interpreted.

so misunderstandings can happen quite easily,and then when we consider that the persons intent is by far the greatest metric to judge the veracity of the words being spoken,and just how difficult it is to discern that intent....this is where nuance and context play such a major role,but we need to have as many tools in our language box to express oftentimes very difficult concepts,multi-layered emotions and complicated ideologies.

and,unfortunately,there are attempts to legislate speech.

of course well intentioned,and reasonable sounding,but like any legislation dealing with the subjective nature of humans,has the possibility of abuse.

case in point:http://sds.utoronto.ca/blog/bill-c-16-no-its-not-about-criminalizing-pronoun-misuse/

a new canadian addendum to their human rights statute.on the surface this is a fairly benign addition to canadas already existing human rights laws,but there is the possibility of abuse.

a psychology professor from university of toronto was critical of this new addendum,and has created a flurry of controversy in regards to his criticism.

which you can check out here:
http://thehill.com/blogs/pundits-blog/civil-rights/301661-this-canadian-prof-defied-sjw-on-gender-pronouns-and-has-a

now he was protested,received death threats,there was even violence and a new internet star was born affectionately labeled "smugglypuff".

see:http://knowyourmeme.com/memes/smugglypuff

i agree that free speech cannot be viewed with an absolutist mindset.absolutist thinking leads to stagnation and a self-righteous fundamentalism,so we NEED the free flow of ideas...even BAD ideas..even offensive and racist..because this brings all those feelings/thoughts/ideologies into the market of ideas to be either absorbed or ridiculed and ultimately ostracized for the shit philosophy they represent.

i WANT to know who the racists are.
i want to know who is bigoted or prejudiced.
i want to know who is holding on to stupid ideas,or promoting fascism dressed up as nationalistic pride.

and the only way to shine a light on these horrendous and detrimental ideas is to allow those who hold them openly state who and what they are...so we can criticize/challenge and in some cases..ridicule.

we should be free to say whatever we wish,but we are not free from challenge or criticism.
we can say whatever pops into our pretty little head,but we are not free from consequences.
we are also not free from offense.

i know this is long,and i hope you stayed with me,and if you did,thanks man.i know i tend to ramble.

but we can use the banning of gorillaman as a small microcosm of what we are talking about here.

i felt that we,as a community,could take gorilla to task for his poor choice in verbiage "nigger prince" and i attempted to make the case by using his history,dark humor and bad taste to add context to his poor choice of wording.

bareboards felt it was a matter for the administrators to deal with.i am not saying her choice was wrong.just that we approached the problem from different perspectives.

now gorilla decided to become the human torch and flame out.which threw my approach right out the window.

but the point i am making in that case,is that bad ideas,bad philosophies,bigotry and racism will ALWAYS reveal themselves if we allow that process to ultimately expose bad ideas/shit person.

the free flow of ideas is the proverbial rope that ultimately hangs all shit ideas.

thanks for hanging kids.
love you all!

Neodymium Magnets Reaching Terminal Velocity

Payback jokingly says...

Sure looked like "breaking up into small parts" to me...


dis·in·te·grate
disˈin(t)əˌɡrāt/
verb
break up into small parts, typically as the result of impact or decay.
synonyms: break up, break apart, fall apart, fall to pieces

MilkmanDan said:

Ahh, but the magnets don't actually *disintegrate*... Maybe "centrifugal separation".

Still, I like the cut of your jib.

meet the otherkin-a wolf with the heart of a snowflake

newtboy jokingly says...

You are not special. You're not a beautiful and unique snowflake. You're the same decaying organic matter as everything else. We're all part of the same compost heap. We're all singing, all dancing crap of the world.”

Kid With Perfect Pitch Showing His Skills

Kid With Perfect Pitch Showing His Skills

Start Getting Used To Saying President Trump

Babymech says...

Does it really matter? Trump has already accomplished the goal conservatives needed him to. The best way to keep the country divided, with more faith in corporations and churches than in the government, is to devalue the democratic process, and make it look ridiculous.

The reasonable part of the country is disgusted that a Trump, or a Palin, or a Carson, or a Cain, was ever treated as a serious contender for leading the country, and will lose a little of their faith in democracy. The true believers on the other hand, who buy into these idiots, will also be disgusted and confused when their candidates inevitably fail, and lose a little of their faith in democracy.

No matter who wins the actual election, the fact that the next president will have been up on the national stage debating with a reality show host who called them dumb, already tarnishes them and their office. Even if the Republicans lose, they'll have strengthened the American belief that politics are dumb and petty and need to be reined in, which is the Republican agenda. A Republican president would just be icing on that cake.

Francis Fukuyama does an interesting overview in his Political Order and Political Decay on how trust in governmental institutions is one pillar of any functioning democracy. Putting Trump and the other clowns on stage seems like a textbook action to undermine that trust.

Nuclear energy is awesome

ChaosEngine says...

Actually, I understand exponential decay just fine thanks, and it's still nowhere close to 500 million years.

Besides, nuclear waste is a localised problem. Sure, it's pretty goddamn awful wherever it is, but carbon is a global problem. We can decide that say, Australia, should be a nuclear wasteland, and the rest of the world would be pretty much ok. It'd suck for the barrier reef though.

Radiation isn't really anything close to a "destroyer of worlds". Even around Chernobyl, there are still plants and animals living there.
http://www.ibtimes.co.uk/wildlife-chernobyl-exclusion-zone-bears-wolves-rare-horses-roam-forests-1477124

cryptoz said:

So you need to understand Exponential Decay a bit better. Try http://mathcentral.uregina.ca/beyond/articles/ExpDecay/decay1.html
Then you discount how long people would be producing it. Sure, its not millions but that wasn't the point, just an exaggeration to help make the point, life can come back from carbon, nuclear waste is a destroyer of worlds.

Nuclear energy is awesome

cryptoz says...

So you need to understand Exponential Decay a bit better. Try http://mathcentral.uregina.ca/beyond/articles/ExpDecay/decay1.html
Then you discount how long people would be producing it. Sure, its not millions but that wasn't the point, just an exaggeration to help make the point, life can come back from carbon, nuclear waste is a destroyer of worlds.

ChaosEngine said:

First up, it's not 500 million years. Nuclear waste (typically Plutonium 239) has a half life of around 24000 years, an eyeblink geologically. Even if it wouldn't be too flash for life as we know it for a while, the planet will be fine, and life will recover.

A Reasonable Request

star citizen damage system

deathcow says...

> The energy would decay and would fizzle out eventually,

Only if absorbed by matter. Assuming the beam isn't collimated absolutely perfectly, the beam would eventually spread and drop in power.

star citizen damage system

lv_hunter says...

The energy would decay and would fizzle out eventually, for a pretty far range i would guess. Theoretically, the Death Star beam could go out for several thousands of years if it didn't hit anything.

Though for the game, there is a set range for laser blasts and they vanish at the range.

A Response to Lars Andersen: a New Level of Archery

poolcleaner says...

But... but I already enrolled in his 12 week course "horseback archery on foot." And what do I do about this LARS tattoo? I just don't think my friends will ever take me seriously again after I invested so much in Lars.

Goddamn you, Lars, you fucking piece of shit I hope you choke on piss and DIE. My whole goddamn life is a whore-mongering lie, imagined as the solipsistic plunge of a physically and mentally inferior charlatan in a shitty and superficial world, but which is more likely the dying thoughts of a misshapen and misfiring synapse in a soup of decaying matter once thought alive.

Neil deGrasse Tyson on genetically modified food

dannym3141 says...

@nock

If we accept that he is a very proficient physicist, then he is certainly able to understanding the scientific method - the attention to detail, the terms, the maths, the statistics.

A proficient physicist can spend weeks analysing a research paper written about their own particular field, needing hundreds of re-readings to understand everything.

I would say, on balance, NdT is very likely to be very capable of understanding of the biology with access to scientific research resources and reference materials. As for the chemistry - a lot of physics (especially the astro) IS chemistry; big bang nucleosynthesis, star nucleosynthesis, nuclear reactions, radioactive decay... Physicists joke that chemistry is just a subset of physics. And biology comes down to chemistry!

I think you're not giving him anywhere near the respect he deserves on this matter. He is not just a physicist - he's a scientist.

(Sorry if i'm a bit like a dog with a bone, i often think that real, well rounded scientific understanding isn't given the respect it deserves - no bias honest! But i would say that NdT could very easily conduct biological research if he found a subject that interested him in that area. Many of the tools are probably the same.)



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