The h Bar

enumaris

00:00

@danielunderwood do you know if Azure or Google Cloud offers anything like AWS Sagemaker?

danielunderwood

I found geometric mechanics that seems interesting

enumaris

@danielunderwood uh...wouldn't that be apparent from the problem itself?

oh that stuff? that's almost all on phase space

Phase space can be thought of as a symplectic manifold

mostly useful for doing Hamiltonian Mech

danielunderwood

Ahh so back to Osborne's lectures I suppose

enumaris

sounds legit

danielunderwood

@enumaris I don't believe I've seen anything, though I haven't really looked hard. I don't know that either of them have a human service like Mechanical Turk though

enumaris

00:02

cool beans

danielunderwood

Though I'm sure they'll be running after a competitor if it's a big seller for AWS

enumaris

yeah probably

danielunderwood

Just go create a startup that does that and wait for them to come buy you

enumaris

am I the only data labeler in this scenario?

danielunderwood

Probably for some point

Actually a while ago I thought of crowdsourcing that type of thing. Let people go to your site and classify things to get paid. You'd just have to throw some known samples or something in there to check accuracy

enumaris

00:10

hmmm

Finally the background check completed and cleared :D

danielunderwood

My background check stressed me out

It failed the first time around when they couldn't get in touch with someone...evidently student positions are covered by a bunch of privacy laws

enumaris

My returned with one "decisional" because I am a contractor and my current employer said they don't have my records lol

so I had to submit an additional document...

danielunderwood

Yeah that's what basically happened to me. Tax forms cleared it all up though

enumaris

well, all done now :D

danielunderwood

00:31

Yep no more job hunt stress now!

enumaris

For a while at least XD

Secret

01:24

Thought experiment:

Suppose there's a charged rod of length l floating in space. Now we knew that it has a radial electric field. Consider now a frame O with velocity v moving to the left. We knew from electrodynamics that a cylindrical magnetic field will be observed in this frame O

Now suppose we have a frame X which in addition to moving with a velocity v, is also rotating about the centre of the rod in the direction to the cylindrical magnetic field. Consider a test compass placed near this rod and is stationary in X. Which direction will the compass be deflected to

The challenge here is that while transforming electromagnetic fields between inertial frames is straightforward and can be done by a matrix, here we have a corkscrewing moving frame. I might need to figure out what the transformation rules

Avnish Kabaj

04:59

That sounds just like a homework question with extra steps

spillthrill

05:35

Why does the absorption coefficient of water become minimized in the infrared band? Does it have anything to do with the physical structure/bonding of water molecules? And, is the fact that infrared is the most readily-absorbed part of the EM spectrum for water, go a long way to explaining why we don't "feel" visible light as heat? Or are there better reasons (e.g. at <1000K, peak spectral energy density is in the infrared bands)? Not a homework question

John Rennie

@spillthrill you would feel visible light as heat if it carried enough energy. I speak as one who has been burned by a laser :-)

It's just that in general visible light doesn't carry that much energy. Until you get the temperature up to the 1000K range most black body radiation is in the infrared.

John Rennie

06:25

Cold in Chester this morning ...

John Rennie

08:18

@Slereah in the unlikely event that anyone is interested, the apparently similar names Chester and Manchester have completely different origins.

The name Chester originates from the Roman word castrum meaning camp or fortress. A couple of thousand years ago Chester was the site of an large and important Roman fort built to keep the Welsh in check.

The name Manchester is also Roman but is derived from the Roman name for the city Mamucium meaning like a breast. Allegedly because the city was built on a hill shaped like a breast.

Slereah

08:40

heheh

John Rennie

This is why everyone living outside Manchester regards Mancunians as tits :-)

Slereah

It is the town of Karl Pilkington, after all

Slereah

08:57

0

Q: Growth of Black Holes and "ho-hair" theorem

Let's assume there is a black hole, and there are two starships (A and B), hovering above the black hole at the same distance from the event horizon, but on the opposite sides of the black hole. According to the "no-hair" theorem, both starships should measure exactly the same gravitational force...

Ho hair theorem

How rude

bolbteppa

13:26

Bro, do you even Fierz?

Fierz identity

In theoretical physics, a Fierz identity is an identity that allows one to rewrite bilinears of the product of two spinors as a linear combination of products of the bilinears of the individual spinors. It is named after Swiss physicist Markus Fierz. There is a version of the Fierz identities for Dirac spinors and there is another version for Weyl spinors. And there are versions for other dimensions besides 3+1 dimensions. Spinor bilinears can be thought of as elements of a Clifford Algebra. Then the Fierz identity is the concrete realization of the relation to the exterior algebra. The identities...

Slereah

13:50

I do Fierz, yes

though it has been a while

Sha Vuklia

14:07

Guys, say we have oxygen, $(1s)^2(2s)^2(2p)^4$. So the two $s$ orbitals yield $l=0$, while the four $p$ orbitals means we can have $l=4,3,2,1,0$. I don't really understand why we can go till 0. So I can see that we must have the option $l=4$, but what is the rule for how far you can go down? In the case of two spin $s_1$ and $s_2$ particles, we usually have the rule that $S=s_1+s_2,\dots,\vert s_1-s_2\vert$. But what's the rule in the case of more particles, say, 3 or 4?

Sha Vuklia

14:19

oh hm, I'm guessing we can add angular momentum in "associative fashion", one particle at a time

Avnish Kabaj

14:46

Slow day at h bar today

user351417

Anyone has any tips for college interviews? I have one on Sunday and I'm trying extremely hard not to scream and crack bad puns.

Anonymous

@Chair What type of college interview?

Anonymous

Admission?

user351417

Yeah, undergrad admission.

user351417

I talk to an alumnus.

Anonymous

14:56

Is it via video call?

user351417

Nah, it's in person. I need to drive to the other side of Bangalore to some random fancy hotel.

user351417

Some of my friends had interviews with the same chap a few months back, and they say that the guy is supremely arrogant. Apparently he's young, he gives zero shits about what he's doing, and he's smart.

user351417

Recipe for success in economics

Anonymous

Weird. Which college is this?

Anonymous

I thought you were applying to US universities?

Avnish Kabaj

14:58

Not in india

user351417

Yeah, it's in the US

Avnish Kabaj

Yeah the alumini take interviews

user351417

I'm always surprised by the number of alumni those places have around

Anonymous

Hmmm. I never appeared for those interviews...

Avnish Kabaj

You gotta be crisp

user351417

14:59

Like one of my classmates applied to Stanford, but both her parents are stanford alumni who... interview stanford applicants in Bangalore. And Stanford still managed to find her an interviewer in town.

Avnish Kabaj

Applying for aid?

user351417

Of course :P

Anonymous

Might be a question for Interpersonal Skills? :P

user351417

"How can I stop making bad puns when I'm nervous and being judged?"

Avnish Kabaj

You need something at the international level then

@Chair Don't

Just make them puns

user351417

15:01

I could say No U after each question.

Avnish Kabaj

10/10 advocated by avnish kabaj

Anonymous

A wise man once said that arrogant interviewers like bad puns.

Sha Vuklia

15:47

does anyone know what my teacher means by this product?

I wouldn't think he means that if we have 2 fermion particles, then we get a boson

because when we look at atoms, we have a bunch of electrons, and the system as a whole is considered a fermion, right

so i'm confused

or is the system as a whole a boson, when you have two electrons, but the electrons considered separately are still a fermion?

John Rennie

@ShaVuklia the system as a whole has a spin, and that determines whether the system acts as a boson or nt.

For example helium-4 atoms behave like bosons at low energies, which is why they form a superfluid. Helium-3 atoms behave like fermions because they have a net spin of a half.

Sha Vuklia

right, but why do we still have the anti-symmetrization requirement for the electron part of an atom?

because when we consider He=$(1s)^2$, we still have to take into account anti-symmetrization of our wave function

which is then only the wave function of the electrons

vzn

16:07

@ShaVuklia wow that looks really deep. havent seen it before. but reminds me of solitons. but few undergrad classes ever talk about solitons. so whether you pay any attn depends on how much you want to really "learn" physics :P

9

Q: Why are some solitons formed from bosonic fields fermionic?

Some topological solitons formed from bosonic fields have fermionic statistics. Why?

quantum-field-theory research-level topological-order

Emilio Pisanty

@ShaVuklia that's precisely what it means.

@ShaVuklia if you have an odd number of particles (electrons, neutrons and protons). If you've got an even number, then the atom as a whole is a boson.

That's what you use when you make Bose-Einstein condensates.

enumaris

16:39

aaaand back at work

second to last day mmmhm

Anonymous

@enumaris How does it feel? :P

enumaris

looking forward to my trip to Maui next week that's how I feel

GodotMisogi

17:46

@ShaVuklia It looks like 1 × 1 = 1, 1 × -1 = -1, -1 × -1 = 1. Reminds me of the "physics is a prank, bro" joke

danielunderwood

18:30

@enumaris ever heard of datalore.io? It seems to be like a hoster jupyter by jetbrains

enumaris

I don't hear of most of the stuff you post here lol

kinda looks like an online version of data robot

oh, not as sophisticated as data robot

more low level

danielunderwood

Yeah I think it's basically just a hosted jupyter notebook....but jetbrains-ified

enumaris

hmmm

danielunderwood

I'm a big jetbrains fan though

enumaris

I haven't used jetbrains before either lol

a bit too slow to get candidates...I won't be able to interview them heh

Curio

19:01

n order to increase genetic variation, crossing over must involve the exchange of material between nonsister chromatids of a homologous pair

Is it true?

The other options are 1) between nonhomologous chromosomes 2) between sister chromatids of a single chromosome 3) different tetrads

Anonymous

@Curio Yes.

Curio

@Blue Thanks!

vzn

19:34

TIL there's an equation similar to Einstein's field equations relating deformations in soft matter with the stress tensor. / reddit reddit.com/r/Physics/comments/alpxal/…

ACuriousMind

@Curio I'm curious why you thought physicists were the best people to ask about this :D

@danielunderwood What is a "jetbrain" though?

A brain that runs on jet fuel? A brain that moves at a high altitude (aka "head in the clouds")? A brain that comes in passenger, cargo and stealth versions?

Novalium Company

Hey Guys!

If you have some spare time give me some feedback on my article: medium.com/kapton/not-human-cfd835445f6

ACuriousMind

> The body doesn’t affect our thinking, logic, memories.

Ever tried drugs?

Or simply went hungry or sleep-deprived for a while?

Anonymous

> There will be no depression, anxiety and so on, because people will be professional psychologists due to the almost infinite information they possess.

ACuriousMind

19:49

> Let’s talk about the neural connections. The more of them you have, the ‘smarter’ you are. By having more neurons and neural connections you are an intellectually higher being.

I'm pretty sure there's no basis for this claim

Anonymous

This feels non sequitur.

ACuriousMind

The reductionist biological basis of "intelligence" is poorly understood, and in general the amount of brain cells humans have does not correlate to their intelligence - geniuses don't have bigger brains.

But I'm not sure what I'm reading, anyway. This reads less like an article on a specific topic with the aim of conveying information and more like a stream of consciousness, trying to convey a mood or feeling.

Loong

@Blue possessing infinite information sounds unpleasant

ACuriousMind

With infinite information comes infinite option paralysis.

Loong

@ACuriousMind xkcd 1801?

ACuriousMind

19:55

Yes :)

Anonymous

Interestingly, there are several cases of depression among professional psychologists.

Anonymous

I think I can dig up some references.

ACuriousMind

I know several people with depression who studied psychology in order to understand their own condition better.

danielunderwood

@ACuriousMind maybe it's the brain of a jet...I mean have you ever seen a human actually controlling a jet?

ACuriousMind

But that didn't cure them of depression, just enabled them to deal with it in different ways

@danielunderwood Isn't that like being the brain of a bird minus the fun of procreation? :P

danielunderwood

19:59

@ACuriousMind birdbrains doesn't sound as good either!

ACuriousMind

the bird is the word

danielunderwood

But birds do have much more control. Just start flapping and they're off

vzn

@Blue ?!? lol there is not much variation in rates of mental illness among all occupations.

ACuriousMind

@vzn Blue did not claim that there was a higher incidence of depression among psychologists, just that there were several cases of it.

vzn

@ACuriousMind lol there are (much more than!) "several cases" in every profession

Anonymous

20:03

@NovaliumCompany Nevertheless, I don't think "infinite" information (raw knowledge) can be bliss. Only ignorance can be. And perhaps "wisdom", in certain sense of the word. :P

ACuriousMind

@vzn Also, if you simply google "depression occupation" the first hits are several studies that claim to find significant correlation between occupation and rate of incidence of depression, e.g. ncbi.nlm.nih.gov/pmc/articles/PMC4557731, ncbi.nlm.nih.gov/pubmed/8495668

Anonymous

Also, these are very vague terms. "Infinite information" doesn't make much sense.

Curio

@ACuriousMind because you all always give me amazing answers!

ACuriousMind

@Curio D'awwww <3

vzn

@ACuriousMind its talking about some elevations, am not disputing that. Blues statement was not actually incorrect but didnt really make much sense. btw have been reading about elevated depression among physicians lately. etc

ACuriousMind

20:06

"not incorrect but didn't make much sense" doesn't make much sense to me.

Recurse!

vzn

@ACuriousMind its like saying there are several cases of "x" among any substantial sized group.

ACuriousMind

I would agree if it was an unprovoked statement, but it makes perfect sense in the context of someone else claiming that being a member of <substantial_sized_group> prevents "x".

vzn

(ok see the quoted Novalium text now)

Anonymous

@vzn The common belief among the general public is that psychologists don't feel depressed because they have spent years learning about various mental conditions. My point was - simply knowledge of the condition you're suffering from doesn't prevent you from the suffering.

Anonymous

And the statistics here is quite different from say "the number of heart surgeons suffering from heart diseases".

vzn

20:10

@Blue dont really think the general public would hold such a belief. but there is definitely a lot of misconceptions in the area. agreed Novaliums text tends to suggest he holds the misconception.

Anonymous

@vzn Look at Novalium's essay.

Physics Meta

0

Q: Are questions regarding gravitational waves allowed?

A question I have is "We know gravitational waves exist, but how do we detect them?" "I have heard astronomers talk about gravitational waves being created when two black holes collide or when two neutron stars collide." note that this question idea is not complete

discussion scope questions

Anonymous

He definitely holds that belief.

ACuriousMind

Novalium = "the general public". Quite an important position he has there!

Anonymous

> There will be no depression, anxiety and so on, because people will be professional psychologists due to the almost infinite information they possess.

vzn

20:11

@Blue anyway, the "opposite" of a misconception is not exactly (automatically) correct either.

Anonymous

@ACuriousMind Well he's just a sample. But I believe that a majority of the general public holds that view as well.

Anonymous

Now of course, I can't make such a claim with conviction without conducting a large scale survey. It's just a belief based on my (limited) past experience.

Anonymous

@vzn Sorry, I don't understand what you're saying.

ACuriousMind

@Blue I think I doubt that the general public holds strong opinions on the mental health of psychologists at all :P

Anonymous

That's possible. But say you give them ~~two (and only two)~~ choices to pick from in a compulsory survey regarding that.

ACuriousMind

20:21

@Blue At least give them a Likert scale

Anonymous

Ah, that's better.

Novalium Company

@Blue You are persuading knowledge, constatly learning complicated math, physics and you tell me that knowledge can't be bliss? How do you know? Have you ever had infinite knowledge?

Anonymous

Firstly, infinite knowledge doesn't make much sense.

Anonymous

Secondly, I was happier as a kid or infant I think.

Novalium Company

I've never said anything about happiness?

Anonymous

20:25

Bliss and happiness are not that unrelated.

Novalium Company

So, what's the feedback?

Do you agree to what I've wrote or if you disagree with something please tell me.

Anonymous

The feedback is: I don't quite agree with your opinion that gaining more knowledge, accelerating cognitive abilities or scientific advancement will lead to a more peaceful or happier world.

Novalium Company

I have never mention anything about happiness or bliss in my article?

Welp, maybe I did in a way.

Anonymous

@NovaliumCompany "There will be no depression, anxiety and so on..."

Novalium Company

^

The thing is, you neither do I know what will happen with such enhancements... but I'm very curious.

@Blue Can you tell me anything particular you don't agree on, but give me a solid explanation why you don't agree?

Anonymous

20:32

No, I'm not quite interested in this at the moment.

Anonymous

But good luck with the essay!

Novalium Company

Thank you. It's not about the essay. I just wrote it to get different opinions and feedback on the ideas.

ACuriousMind

@Blue Just wait till you get older

Anonymous

Lol

Novalium Company

@ACuriousMind Is this graph actually solid?

And what distinguishes the nerd from the normal person?

danielunderwood

20:38

I sure hope I'm one of the nerds

ACuriousMind

The graph is a bit squeezed in the x-direction for me (i.e. the nerd minimum happiness is shifted to younger years), but otherwise it reflects my life experience so far :P

danielunderwood

Otherwise I'm pretty much at the normal people peak

ACuriousMind

Note also the additional comic panel beneath the red button!

Novalium Company

I think I'm turning into an extroverted nerd.

But the fact that I'm still in this forum just says otherwise.

ACuriousMind

Note then the missing axis labels on the additional panel and rage

Anonymous

20:39

@NovaliumCompany When you speak of such enhancements, all I can imagine is a mental picture of conflicts. Definitely they're interesting to consider from a scientific viewpoint though. Not from a "will solve all human problems" viewpoint. :)

Anonymous

That's basically how science and technology has progressed throughout history though, so that's not cynical at all. :P

Novalium Company

@Blue Of course! I have no idea what will actually happen but for sure I want to find out. It's a very controversial idea tho.

Anonymous

Same here.

Novalium Company

It can be viewed from many sides. For example if internet gets connected to the brain, everyone will browse their shitty facebooks all day... which is bad... very bad.

danielunderwood

A lot of people already do that all day!

Novalium Company

20:44

For sure school won't be needed anymore tho. :DD

@danielunderwood Exactly! :D

ACuriousMind

If we ever manage to connect technology directly to our brain, it won't be like anything we can imagine

SciFi authors of the past couldn't even imagine WiFi!

Novalium Company

@ACuriousMind I couldn't agree more.

I'm learning Chinese.

ACuriousMind

They wrote stories about hyper-advanced civilizations that had to plug cables into things to communicate quickly

It's ridiculous, really. We don't have rocket cars but the level of interconnectedness of our modern world surpasses most futures people before the advent of the internet thought even remotely plausible

Novalium Company

I was also wondering, when internet gets connected to our brains (<-- very raw statement) that will eliminate all privacy and what? Do we become a single entity thinking as one or... I have no idea... (neither does anybody)

Anonymous

I'm hoping you can control which parts of your thoughts/memory you will give access to. :P

danielunderwood

20:48

Futurama- Eyephone

►

Novalium Company

@danielunderwood That's the future I am aiming for xDD

I will probably roll into a uni with neuroscience so I can be prepared to do things in my article. Maybe such inventions will lead to the end of humanity, but... it will happen anyway so. It's technically still evolution.

你叫什么

If you think about it, humans should work to enhance the brain, and then work on problems and stuff... it's like trying to travel in a really crappy slow van, instead of upgrading to a new fast car... humanity will make progress much faster. Or if they possessed the internet as knowledge/memory I have no idea what happens then, but I'm really curious to find out and I'll invest my time working on such ideas.

ACuriousMind

There are so many things in this world we could fix before getting to trying to alter our brain.

Novalium Company

But first I'll make sure I understand the brain well.

@ACuriousMind This sentence means nothing or at least my brain (me) can't interpret it right.

Anonymous

> humans should work to enhance the brain, and then work on problems and stuff

Novalium Company

@ACuriousMind It's like trying to chop a tree down and you start working from top to bottom (you first work on the leaves... and in the end you get to the root) and you could have started there and the whole tree would have fallen.

Anonymous

21:01

Scientific fields can't progress in isolation.

ACuriousMind

@NovaliumCompany You say "humans should work to enhance the brain". I think we should first work on not killing each other, ensuring everyone can live in safety and dignity, and so on. I shudder to think what equivalents of the atomic bomb "intelligence" untempered by social progress could unleash

Novalium Company

@ACuriousMind I have my philosophy but I'd prefer to meet in real life and talk.

ACuriousMind

I'm happy to invite anyone who stops by in Heidelberg for a beer :P

Novalium Company

Alright, I'm from Bulgaria, I'm booking the flight now, should be there in a few hours. Prepare my bed.

Anonymous

He just called you for a beer dude. You're asking for too much. :P

ACuriousMind

21:05

It's fine, guests can sleep in our library

(it's a small closet with books on shelves and matresses on the floor)

Novalium Company

Any interesting books I can borrow for the night? I put them under the pillow and when I wake up the information is in my brain.

ACuriousMind

There's also an Atari in there

Novalium Company

Ah... my subconsciousness is trying to replace social interactions with this chat room but it doesn't work. I'm in the process of finding friends and exploring the extroversial life...

But seriously tho, I'm really excited about enhancing the brain and if I set my life to achieve this goal I can die peacefully.

Anonymous

May 9 '18 at 20:06, by Novalium Company

@Droleulb What should I do then, what do you mean by 'trying new things'. I think I've found my passion and what I want to do.

Anonymous

Around 8 months back, I think you had a different life goal. :P

ACuriousMind

21:13

Jan 16 at 19:39, by ACuriousMind

@SirCumference It sounds like fluff, but my life would have been much poorer hadn't I learned all those useless things. Music theory, dead languages, ancient poetry, philosophy. And, well, you know, two years ago I was rock-sure I'd be a physicist my whole life and would have agreed with you that's the only thing I "needed". Now I'll likely never "need" it again, yet I don't regret for a single moment spending six years learning it.

Novalium Company

Of course. That's completly normal. My goal and views change, so this idea might go away, but for it to go away it must be replaced by something even more purposeful.

ACuriousMind

Life is what happens while you're busy making different plans

Novalium Company

@ACuriousMind A beautiful sentence!

ACuriousMind

Sadly, not my invention

Novalium Company

Welp. I don't know what will happen in my future, but the enhancement of the brain is just an appealing idea to me and I'm excited about it, I'm not doing anything wrong.

Anonymous

21:18

Why are you so fixated on one thing though?

Novalium Company

I'm not? I have many other passions. I still learn physics, maths, philosophy. I develop my social abilities and so on...

Anonymous

I mean, it's definitely nothing wrong. It's just too early to decide what'll be necessary for you to die peacefully. :P

ACuriousMind

@Blue You might think differently after a bus hits you tomorrow :P

Novalium Company

Alright then. Anyone wanna say something or talk about something because I'll go?

Anonymous

If a bus hits me tomorrow, definitely reading about brain enhancements won't make it any more peaceful. :P

Novalium Company

21:22

Purpose and reason have nothing to do with peacefulness nor happiness.

Anonymous

@NovaliumCompany Go and sleep!

Novalium Company

@Blue rude.

Anonymous

Lol

Novalium Company

So many mysteries in this world and enhancing the brain will lead me closer to them. Whatever... goodnight humans. :)

Anonymous

Bbye! :)

ACuriousMind

21:24

Goodnight, fellow human

Anonymous

Hiya! @Semiclassical

Anonymous

Long time no see. :D

danielunderwood

Maybe someone can solve my afternoon sleepiness before we get to interfacing with our brains

enumaris

yuck

got my whole shoe soaks in the rain water...

I'm gonna leave early today -.-

ACuriousMind

@danielunderwood the solution is called a "nap"

danielunderwood

21:31

Interesting...tell me more about this thing you call "nap"

@enumaris I'm pretty sure I remember just skipping the rest of my classes after having wet shoes in college at some point

Anonymous

Yeah, you just need to carry a couple of pillows to your office.

enumaris

@danielunderwood I hate wet shoes...

Anonymous

Close the door. And sleeeeep!

ACuriousMind

@danielunderwood When you get sleepy you just lie down and close your eyes. Then the magic happens.

Anonymous

Taking a nap is more difficult in open offices I guess (with no partitions).

ACuriousMind

21:34

@Blue We have plenty of meeting rooms with couches.

Anonymous

Aaah, meeting rooms. Even better.

Anonymous

On a more serious note, I think it's something many employers would frown at, unfortunately.

Anonymous

Just going out for a walk helps. Also a good night's sleep.

ACuriousMind

@Blue On a serious note, no one will fault you for taking a half hour nap or so in our rooms.

We don't have fixed working hours, either - if you do your job no one cares when you do it.

Anonymous

Not all offices are SAP offices. :P

Anonymous

21:43

Yeah, some of the big MNCs provide considerable freedom to the employees in this regard. But the smaller companies and startups might be much more fussy, I guess.

Anonymous

> I have seen many companies that are OK with napping, many others which are not. Some even set up nap rooms to encourage the behavior, others do not. Some allow it by policy, but then the peer culture is such that you're not tolerated by your coworkers if you take advantage of that corporate leniency.
Sometimes it's really counter to what you might expect from other cultural norms. I've seen companies that have a strict dress code and hours of business that are more lax on sleeping at your desk than others which let folks come and go as they please and wear whatever they want.

Anonymous

Is it frowned upon or even unacceptable to take a nap or rest in office when feeling tired/sleepy?

vzn

22:03

> Humans still don’t know how to achieve this transcendence but are very close.

↑ you dont cite Kurzweil who is one of the foremost proponents of these ideas. my feeling is some affinity for the ideas but he makes some major sleights of hand eg from AGI to "human brain-machine interfaces" which are inherently much different technologies. anyway this is one of my favorite counter-Kurzweil essays at moment by Chollet, hope someone develops it into a book... medium.com/@francois.chollet/…

danielunderwood

22:18

I'm pretty sure laying down and closing my eyes at work would just result in assembling a mental list of things I need to do rather than falling asleep

ACuriousMind

Think about how much more effective you'll be in doing these things if you just get some shut-eye :P

danielunderwood

hmmm good point!

ACuriousMind

Effective companies understand that stressed workers don't deliver quality work.

danielunderwood

Luckily there seems to be no stress so far where I am now. It's quite nice

If only I could sleep in meeting rooms while I'm in a meeting!

ACuriousMind

I had a really stressful day today and was really impressed how my managers simply focused on letting me do what was needed

enumaris

22:44

nice

dang, it's taking forever to just change permissions

I wanted to head home -.-

why does changing permissions to a folder get harder the bigger the folder is...hmmm

ACuriousMind

@enumaris ...because you need to recursively change permissions on every file within it?

I mean, it depends on your file system, but I wouldn't be surprised if yours implemented permissions on a "per file" basis rather than "per directory"

danielunderwood

23:05

sudo chmod -R 777 /

I think I actually did similar during my days before understanding permissions...

But I learned from my mistakes and do the sensible thing sudo chmod -R o+rw /

enumaris

23:50

well I won't pretend to know the details

anyways

now I'm home, everything is much better :D

user929304

@ACuriousMind hi :)

ACuriousMind

@user929304 ahoi

user929304

@ACuriousMind i have a bit of a random question :)

ACuriousMind

as long as you're satisfied with a bit of a random answer, shoot

user929304

@ACuriousMind in wifi routers, one can tweak the signal to noise ratio, namely rhe ratio between the received signal strength and the noise level interfering with the signal. But how is that even possible to tweak? One would think it s fixed once the router designed. Could it be related to the fact that the noise level itself depends on the transmitted signal strength?

Such that if the strength (amplitude) is lowered, the signal becomes less susceptible to noise? (Due to interference)

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