The h Bar

0celo7

4:15 PM

@ACuriousMind $$\mathfrak{HAPPY \,\,BIRTHDAY}$$

4

Yashas Samaga

0

A: Why is surface tension parallel to the interface?

This is indeed very confusing. I think of it like this. Note this approach is purely conceptual and not at all rigorous! For a general definition of Force as the change of potential $$ F_x= -dV/dx $$ As you can see in the image, when a water molecule reaches the surface there has been work do...

What's he saying?

0

Q: Which version of python should I use?

I am a physics professor who deals with Mechanical Engineering students and sometimes introduces a bit of introductory MATLAB. These students will have little need for Python, and I find MATLAB (and more rarely Mathematica) more than sufficient for any calculations I might do. But now I am work...

off-topic?

Slereah

yes

ACuriousMind

@0celo7 Thanks! :)

Yashas Samaga

@ACuriousMind Happy birthday

Slereah

$$\mathscr{HAPPY BIRTHDAY}$$

ACuriousMind

4:24 PM

Gonna see these guys tonight, then party tomorrow.

Bernardo Meurer

@ACuriousMind Happy birthday man!

ACuriousMind

Thanks to you all

Bernardo Meurer

happy birthday variations

►

@ACuriousMind There you go

0celo7

@ACuriousMind I'll buy you a book for your birthday

Bernardo Meurer

@ACuriousMind I'l buy you socks

0celo7

4:30 PM

Is there witten merchandise?

Student404Mus

Hello everyone

One more question in condensed matter

0celo7

Bajoran, if you don't want a book, I'll be glad to buy myself a book.

Bernardo Meurer

Does anyone here have a machine with Linux, BSD or OSX that has >=16 threads? Like a beefy server or desktop?

I want to test a piece of code for how it scales at large core counts

Student404Mus

When we we get the density of oscillations in frequency space in one dimension we write like this D( \omega ) = 2 dN/dk * dk/d( \omega )

And in 3dimensions

0celo7

@BernardoMeurer I have a quad i7

Does that count?

Is that just 8 threads?

Bernardo Meurer

4:36 PM

That only has 8 threads, it's the same as my machine, thanks though

Yeah, idk if there are mainstream laptops with 16 threaded CPUs

Koolman

@ACuriousMind Happy Birthday !!

0celo7

I have to cover my webcam anyways since you last ran code on my machine

Bernardo Meurer

lol

Student404Mus

D( \omega ) = dN/dk * dk/d( \omega ) and k is a vector

The question is why we added number 2 in one dimension and we didn't add anything in 3D?

In one dimension it's the symmetry of the oscillation

No answer?!

0celo7

Why should we care?

Bernardo Meurer

4:44 PM

@JohnRennie have you got a machine with a lot of threads?

John Rennie

@BernardoMeurer The high end Dell Precisions possibly ...

Bernardo Meurer

Not sure I'd put the Precisions in mainstream category :P

John Rennie

@BernardoMeurer No. I rarely run software that uses multi CPUs well. Occasionally I resample video, but that's about it.

Bernardo Meurer

Dangit :P

John Rennie

I tend to use the M series CPUs with two cores/four threads but a high single thread speed.

Bernardo Meurer

4:45 PM

Dude! Did you see the Ryzen benchmarks?

John Rennie

No, but I'm not a CPU groupie so I wouldn't care.

Bernardo Meurer

95W TDP, and the $500 1800x competes with the $1000 6900K from intel

I'm a total CPU groupie :P

100%

EXCITING TIMES

0celo7

@BernardoMeurer are you going to SF this summer?

John Rennie

I currently using the new laptop that has a Kaby Lake CPU (I'm at my brother's house).

0celo7

Stupid name.

They should name it Krabby Patty

John Rennie

4:49 PM

But there's no Win7 support for Kaby Lake so I've been forced onto Win10.

Bernardo Meurer

Also Intel couldn't get the 10nm shrink to work for high-power CPU's! So Cannon Lake will only be for <=15W TDP designs, and a new "Coffee Lake" will be introduced with the 14nm architecture as an improvement over Kaby Lake

Also, 145W TDP on Kaby Lake is silly

John Rennie

145W?

Bernardo Meurer

@0celo7 Don't know. Depends on my transfers, has M gotten a house yet?

John Rennie

This has an i7-7500U.

I'd have to look up the TDP but's nothing like 145W

Bernardo Meurer

@JohnRennie I was talking about the Desktop 7700K, but apparently that has a 91W TDP.

Idk why I had 145 in my mind

0celo7

4:50 PM

@BernardoMeurer she would have said so in the Unger group chat

So I don't think so

Bernardo Meurer

Damn

0celo7

She's sleeping under a bridge probably

John Rennie

cpubenchmark.net/cpu.php?cpu=Intel+Core+i7-7500U+%40+2.70GHz

15W!!! Eat my shorts AMD! :-)

Bernardo Meurer

That's a mobile chip!

I'm talking Desktop dood

John Rennie

Correct. But it's still bloody fast!

0celo7

4:52 PM

@JohnRennie what?

Bernardo Meurer

And AMD is considering open sourcing their coprocessor, meaning Ryzen chips could be entirely compatible with CoreBoot!

John Rennie

@0celo7 Cultural reference - before your time :-)

Bernardo Meurer

@0celo7 I might go to hang around with Daniel in any case though

it all depends on my transfers

John Rennie

Competition with Intel is good. It'll force them to up their game. But AMD are never going to win the battle for the top end.

@BernardoMeurer did you know W10 disables wake-on-LAN even if you have i enabled in th bios. For pity's sake Microsoft what are you playing at?

Bernardo Meurer

@JohnRennie I don't want AMD to win the top end, I want them to make Intel have to work for their money again

It's been a long time since the golden days of Athlon

AccidentalFourierTransform

4:56 PM

its ACM's birthday?

Bernardo Meurer

@JohnRennie What? Really? Why would you do that?

0celo7

nope

Bernardo Meurer

@AccidentalFourierTransform No, we're just shouting happy birthday at him in hopes he will believe it is

0celo7

@JohnRennie You computer people complain about stuff I've never heard of or care about

It's easy to see why Microsoft would remove it

John Rennie

@BernardoMeurer Apparently they use a type of system shtdown that disables WOL. The advantage is a faster startup time.

AccidentalFourierTransform

4:57 PM

@BernardoMeurer hmmm ok

lol

John Rennie

@0celo7 Balls

0celo7

Flagged

What about them?

John Rennie

:-)

Bernardo Meurer

@JohnRennie Ah! The hibernation thing

I always disable that shit

John Rennie

Useful on a laptop though ...

Bernardo Meurer

4:59 PM

it fucks the whole NTFS up and you can only have RO access to it from another machine

John Rennie

NTFS?

Oh, the disk system?

Bernardo Meurer

The partitioning scheme Windows uses is NTFS

Yeah

0celo7

Nearly Timely Functional Systems

Bernardo Meurer

New Technology File System

John Rennie

NTFS is a very, very good disk filing system

0celo7

5:00 PM

Bamboozled by the asterisks

John Rennie

MS have done so many things badly that people forget they've done some great things too.

Bernardo Meurer

I've never had issues with NTFS so I cannot complain

Most stable FS today are good

JamalS

I'd pick MS over Apple any day

Bernardo Meurer

EXT4 on linux works well, so does NTFS, ZSF,

Apple has that weird HFS+ or whatever scheme

John Rennie

When it was release (1994?) it was far ahead of any other production DFSs

Bernardo Meurer

5:02 PM

I don't know much about HFS, just know that it's journaled

I think Windows 3.1 had NTFS already

3.1 is 93 or 94?

John Rennie

No, NTFS was never supported on the 16 bit versions of Windows.

Ah, sorry, you mean NT 3.1. Yes, that had NTFS.

Bernardo Meurer

Yeah, my bad, NT 3.1

Goddamn product naming

Yep, 93

Jeez, it's old!

John Rennie

You had to be there to appreciate just how awesome NT3.1 was for us techies

The first proper MS 32 bit OS.

We could take finite element software that we had to run on a time shared (and expensive) mainframe and run it on a PC instead.

Though on a 386 it ran a bit slower than on an IBM mainframe :-)

Bernardo Meurer

A 386 was my first machine :)

John Rennie

6502 was my first PC :-)

The 6502 was a sweet chip to code for in assembler.

dmckee

5:07 PM

^ Me too.

And if it was an Apple ][+, there was a little assembler in the ROM, so you didn't even need any software.

Bernardo Meurer

I then used some i686 machine for a bit as a kid and eventually moved to a Pentium III and then IV

dmckee

That is what launched my larval stage and got me interested in doing real programming.

But m68k is still my favorite instruction set.

Bernardo Meurer

You guys are OG computer nerds

I feel like a hipster

John Rennie

Was there a C compiler for the Apple II?

Bernardo Meurer

@dmckee Your love for M68000 crosses oceans

dmckee

5:10 PM

@JohnRennie It was pricey. Pascal was cheaper. But both compilers were painfully slow.

Bernardo Meurer

@JohnRennie I think so

It was a company with a funny name who made it

dmckee

I didn't get to try them until after I had played with Turbo Pascal on the PC.

Bernardo Meurer

like maya or something

dmckee

And the difference was stark.

Bernardo Meurer

Did any of you use Borland?

dmckee

5:11 PM

@BernardoMeurer Yeah. On a fishbowl mac as well as PC.

I still think their "No nonsense" license is the fairest thing I've ever seen.

Bernardo Meurer

groups.google.com/forum/#!topic/…

Indeed

Such a good license

0celo7

@BernardoMeurer help

Springer is having a 50% sale on a bunch of math books

I need the strength to not buy too many

Bernardo Meurer

@0celo7 Buy me some

0celo7

@BernardoMeurer ok

Since @ACuriousMind is being a butt about it, I'll get you the one I was going to get for him

Bernardo Meurer

:D

@dmckee Do you have access to a machine with many threads?

0celo7

5:23 PM

it has to be $30 or less

@BernardoMeurer I have access to the analysis cluster at ORNL

Bernardo Meurer

@0celo7 Can you run code on that?

0celo7

But every time I log in, I have to certify I will only use it as intended

Bernardo Meurer

Like C code

0celo7

I might, but they'd lock my ass up for hacking a U.S. Gov server :P

Bernardo Meurer

I don't see a sale

The sale is for astronomy for me

0celo7

5:25 PM

wtf?

@0celo7 lol

pic?

I'm about to get four volumes of Hörmander, a book on heat kernels, a book on geometric measure theory (perhaps two)

I'm sure there's more

Well, I'll trick Bob into getting the PDE books

Bernardo Meurer

lol

0celo7

5:27 PM

@BernardoMeurer Not one sale

Bernardo Meurer

springer.com/gp/book/9781441917478

Aha!

AccidentalFourierTransform

i dont get it

why do people buy books

Bernardo Meurer

To impress other people who buy books

0celo7

because we're not smelly like you

Bernardo Meurer

It's a recursive thing

0celo7

5:31 PM

One of my professors was very impressed by my second edition Adams & Fournier

And my advisor is jealous of my Beem & Ehrlich

Bernardo Meurer

Adams & Fournier is published by Elsevier

Wouldn't even touch it

0celo7

What?

Bernardo Meurer

And everyone is Jealous of your Beem & Ehrlich

0celo7

It's like $300 now

I got the last cheap one in the world lol

Bernardo Meurer

"cheap"

0celo7

5:41 PM

relatively!

@BernardoMeurer that algorithms book is on springer link

AccidentalFourierTransform

general relatively

Bernardo Meurer

What's springer link?

Student404Mus

How general relativity is far from the special one

AccidentalFourierTransform

Can you be more Pacific?

0celo7

The distance is positive in the metric space of theories

dmckee

5:48 PM

@BernardoMeurer Not really these days. I mean, four cores is enough to make certain multi=threading operations worth while, but it's pretty minor stuff.

There is a fancy graphics pipeline that can be programmed against on my machine, too. But I've never take the time to learn that stuff.

Anonymous

Can anyone here answer this: physics.stackexchange.com/questions/315569/…

Anonymous

It seems pretty interesting and has not received much attention.

Bernardo Meurer

6:15 PM

@heather Where's that Raspberry Pi Cluster?

The Collatz calculator is done

It's not fully multiprecision though

it can only compute collatz for up to 2^63, but in the computing process the numbers can be arbitrarily large

0celo7

What are you talking about?

Bernardo Meurer

@0celo7 Computing collatz conjecture

Jaime Gallego

6:51 PM

@BernardoMeurer How much time does it take to check largeish numbers?

bolbteppa

@0celo7 Why are you getting the hormanders

If you're going to get those, get his SCV book

0celo7

@bolbteppa I don't believe for a second you know enough functional analysis to recommend books...

And I care negatively about complex analysis.

bolbteppa

I believe you are blundering into insanely complicated books not knowing the books that motivated those books being written in the first place, e.g. his SCV book

@0celo7 wiki.math.ntnu.no/_media/ma8108/2015h/30june2014.pdf

You care negatively about the topic that motivated everything in those books he wrote, the whole point was Levi's theorem and beyond, merging cohomology, pde's, functional analysis, scv

DanielSank

@0celo7 Basic complex analysis is useful.

You should know that $$\int dz \frac{f(z)}{(z-z_0)} = 2\pi i f(z_0) \, .$$

(The integral is over some closed curve that encloses $z_0$.

That's a pretty useful thing to know.

0celo7

@DanielSank I know complex analysis, but I don't have to have enjoyed learning it.

DanielSank

7:05 PM

k

0celo7

There's at least one other chat regular who shares my opinion.

@bolbteppa as of right now, yes.

bolbteppa

If you want to make complex analysis interesting, learn SCV and it's link to PDE's via the Levi theorem

DanielSank

@bolbteppa I found in interesting enough that the Cauchy residue theorem is just Stoke's theorem in disguise.

bolbteppa

Me too

DanielSank

Stokes's theorem is in my top five favorite Math Things$^\text{TM}$.

Emilio Pisanty

7:09 PM

@DanielSank you ever see the cover of Spivak's Calculus on Manifolds?

DanielSank

@EmilioPisanty Nope.

I read Munkres's Analysis on Manifolds.

Emilio Pisanty

DanielSank

@EmilioPisanty Someone's notes?

Emilio Pisanty

@DanielSank it does look pretty cryptic, doesn't it?

DanielSank

Yessir.

Emilio Pisanty

7:10 PM

It's a letter to Stokes from Kelvin

outlining what is now known as Stokes' theorem

DanielSank

oh?

@EmilioPisanty Very cool.

Emilio Pisanty

@DanielSank yes, yes it is

Either way, it's an awesome book

tiny sliver of a thing

dense as hell

and really enjoyable

DanielSank

BTW when I say "Stokes's theorem" I mean "Any of those theorems liking a boundary integral to the integral over the enclosed set".

Divergence theorem etc. are all the same IMHO because you just use the dual versions of various forms etc. etc.

bolbteppa

@0celo7 math.stackexchange.com/a/289640/82615 might motivate you

0celo7

Oh you mean the generalized Kelvin-Stokes-Newton-Euler-Poincare-Gauss-Ostrogradsky theorem?

5

DanielSank

7:13 PM

Yeah that thing.

bolbteppa

Ostrogradskii

DanielSank

Didn't know Poincare got a slice of that pie.

Good for him.

Emilio Pisanty

@DanielSank yeah, obviously

0celo7

@DanielSank I made up half of that :P

Pincare is definitely in there though

Emilio Pisanty

@0celo7 Who (or what) is Pincare?

0celo7

7:14 PM

Poincare's nonorientable brother

bolbteppa

The guy who really discovered relativity before Einstein runs

Balarka Sen

@EmilioPisanty Double cover of Spincare

No, that's wrong. Pin double covers O

0celo7

Spin is simply connected...

Balarka Sen

Yeah.

It double covers SO

0celo7

I said nonorientable because you get Pin manifolds when the base is not orientable. I think.

bolbteppa

7:17 PM

The 'proof' of Stokes and Gauss in Purcell's EM is literally amazing

DanielSank

@bolbteppa The proofs are pretty obvious once you draw the right picture...

What goes in must come out...

It's just a bunch of cancelling boundaries.

Is that how Purcell does it?

(Purcell's EM book is awesome)

Balarka Sen

My intuition for Stokes is the one-liner "local swirlies on the interior add up to global swirly on the boundary"

DanielSank

@BalarkaSen yep

It's really obvious if you draw a grid inside your surface. Then you can see that all the internal swirls cancel.

Balarka Sen

Ya.

0celo7

@BalarkaSen yup

Balarka Sen

7:21 PM

I also absolutely love Cauchy's theorem by the way. I have no idea how it proves complex differentiable functions are analytic but it does. I know it's supposed to be a bootstrap proof, but, well

bolbteppa

Purcell basically just goes $\int_S \mathbf{F} \cdot d \mathbf{S} = \sum_i \int_{S_i} \mathbf{F} \cdot d \mathbf{S}_i = \sum_i V_i [ \frac{\int_S \mathbf{F} \cdot d \mathbf{S}_i}{V_i}] = \int \nabla \cdot \mathbf{F} dV$ and voila

Balarka Sen

@bolbteppa That's still the version in 3 dimensions.

For higher dimensions there's no way to write down a vector calculus formulation

Also I find that proof to be handwaving the technicalities away

bolbteppa

Yeah it's in a physics book

Balarka Sen

Fair

0celo7

@BalarkaSen you mean you don't know the actual proof or you don't grok it?

Balarka Sen

7:28 PM

I know the proof. I don't know why it works.

0celo7

@BalarkaSen I looked at the stochastic analysis on manifolds book. Very interesting that one can prove global theorems in Riemannian geometry from Brownian motion. But page two expected me to know what a diffusion semimaringale on a filtered probability space is. Maybe one day I'll read it lol

I'd need a TL;DR on stoachstics first. No way I can sit through a book of that stuff

Balarka Sen

Huh, interesting. I don't actually know that stuff.

I have never actually looked at any of the probability-ish things out there

Emilio Pisanty

7:47 PM

0

Q: Pulsed plane wave

My question is specifically concerned with ultrashort pulses: can a plane wave (one with infinite spatial extension) have a finite duration in time? Is there some physical principle that is violated for a pulsed plane wave?

plane-wave

lolz

loltospoon

Could someone help me understand quantum statistics?

http://physics.stackexchange.com/questions/316048/help-with-simple-quantum-statistics

Idk how to do the cool linking

Emilio Pisanty

@DanielSank yes, as I recall

@loltospoon put the url and nothing else in a single chat message

it's called oneboxing if you want to search for it

0celo7

@BalarkaSen I need a Milnor for probability...not a Lee.

Balarka Sen

high 5s

0celo7

Or I could play the wiki game

Just look up every word

Balarka Sen

7:51 PM

Doesn't really work for me

loltospoon

-1

Q: Help with simple quantum statistics

I need help understanding how to do simple quantum stats problems. Let's say that I have 3 identical particles in a 1-D harmonic oscillator potential with total energy $E=\frac{9}{2}\hbar \omega$. I need to find the occupation number configurations, the number of distinct three-particle states ...

probability fermions bosons quantum-statistics

Nice

ty @EmilioPisanty

Emilio Pisanty

@loltospoon That is most likely going to be closed as homework-like

we don't really do check-my-work here

however

the probabilities bit can probably be rephrased in a way that makes the question on-topic

but you need to be very clear about what you mean by that part

loltospoon

Yea its the probabilities part that I want to know about

Emilio Pisanty

@loltospoon Then make your question about that instead of waffling on and asking people to check it

0celo7

The definition of Martingale isn't that bad, really.

Emilio Pisanty

7:53 PM

On another track, your notation for occupation number configurations isn't particularly clear

0celo7

But it's not clear what the hell it has to do with a random walk...

loltospoon

@EmilioPisanty that's the notation Griffiths uses

0celo7

"Oksendal" was recommended by someone in here.

Emilio Pisanty

@loltospoon believe it or not, not everybody has a copy of Griffiths right at their desk

;-)

loltospoon

Oh sorry, I don't really know what is common notation yet that everyone knows

what is more common for configurations?

Emilio Pisanty

7:56 PM

@loltospoon what exactly do you mean by "configurations" there?

Mike Miller

@ACuriousMind math.stackexchange.com/questions/2169826/…

0celo7

@alarge I'll take a look at Oksendal, thanks.

loltospoon

@EmilioPisanty this is what Griffiths says it is: imgur.com/a/zE1Dj

Emilio Pisanty

@loltospoon That's not clear at all

that's just one big long vector with no indication of what the numbers mean

The crucial thing is that the notation presupposes an assumed ordering for the basis

which you haven't given

bolbteppa

@loltospoon Griffiths gives an example that you just mimic

but for a harmonic oscillator with 3 particles, you use $a^* a + 1/2 = n + 1/2$ for each of the three particles, giving $(n_1 + n_2 + n_3 + 3/2)\hbar \omega = (9/2)\hbar \omega$ instead of the relation Griffiths uses for the well

If you have more than one identical particle, you can't distinguish between which particle you measure if you measure one of them, so variables like position become less useful, and other variables, like what stationary state the particle is in, is more relevant, hence the occupation number formalism Griffith is using, for multi-particle quantum mechanics of identical particles, notation is standard

Emilio Pisanty

8:14 PM

@loltospoon I have clarified your notation and significantly rephrased it using the information you've put here.

Please check it thoroughly to ensure that it represents your intent, and obviously feel free to roll back any and all changes.

bolbteppa

0celo7

Crackpot!

@BalarkaSen I'm special. The general Bolzano-Weierstrass theorem says that every bounded infinite set has an accumulation point, right?

I guess you just get a sequence and then a limit, so yeah.

Emilio Pisanty

8:52 PM

hahahaaaaa! finally! powers beyond what even a mod can do!

134

Q: Gold-badge holders and moderators can now edit duplicate links

As of a few minutes ago, if you have a gold tag-badge for a tag associated with a question that's been closed as a duplicate, you can edit the duplicate links to replace, add, remove or re-arrange them: These changes are tracked in PostHistory to allow anyone to detect abuse, while the res...

discussion featured exact-duplicates moderator-tools dupehammer

hugely relevant for this site

or at least for the one guy who has half the gold tag badges

0celo7

9:11 PM

@EmilioPisanty subtle brag?

Emilio Pisanty

@0celo7 what?

no

I have one hard-earned gold tag badge

JR has nine

0celo7

No one likes @JohnRennie

You have that much over him

@BernardoMeurer There's a guy in my thermo class who makes Ethan look like a skinny bimbo

Bernardo Meurer

@0celo7 Sweet

0celo7

9:26 PM

He struts too

Doesn't walk straight, shakes his assets

It's very strange

Thicc af tho

@DanielSank According to Arnold, it's the Newton-Leibniz-Gauss-Green-Ostrogradskii-Stokes-Poincare theorem.

So...I missed Leibnitz (forgive me Germany) and Green.

Sir Cumference

Does anyone know how to calculate the phase integral for a celestial object?

0celo7

But I don't understand why Kelvin doesn't get any credit.

@SirCumference Yes.

Sir Cumference

@0celo7 ...really?

0celo7

yeah, what are they?

I'm sure I can do the integral

Sir Cumference

Well in reality, I'm looking at the function for the phase angle: $$q = 2\int_0^\pi \frac{I(\alpha)}{I(0)} \sin\alpha \, d\alpha$$

0celo7

9:35 PM

@DanielSank and apparently, it was Hankel who first published it

Sir Cumference

And I'm hoping someone here knows what the formula for $I(\alpha)$ is.

0celo7

so really it should be the Newton-Leibniz-Gauss-Green-Kelvin-Stokes-Hankel-Poincare-Ostrogadskii theorem.

@SirCumference context?

Sir Cumference

@0celo7 Well I'm trying to get the phase integral of the Moon at different $\alpha$, but wikipedia isn't helping at all

Bond albedo

The Bond albedo, named after the American astronomer George Phillips Bond (1825–1865), who originally proposed it, is the fraction of power in the total electromagnetic radiation incident on an astronomical body that is scattered back out into space. Because the Bond albedo accounts for all of the light scattered from a body at all wavelengths and all phase angles, it is a necessary quantity for determining how much energy a body absorbs. This, in turn, is crucial for determining the equilibrium temperature of a body. Because bodies in the outer Solar System are always observed at very low phase...

0celo7

Why are you trying to do this?

Sir Cumference

@0celo7 Answering a question on Astro SE

The guy wants to know how to find the brightness of the Moon, knowing the angle between it, Earth and the Sun.

dmckee

10:08 PM

@SirCumference Well, the Bond albedo isn't going to tell you that because it integrates out the angular dependence.

Sir Cumference

@dmckee I just need the phase integral to find the absolute magnitude at a given phase angle

A solar system object's apparent magnitude can be found with

$$m = H + 2.5 \log_{10}{\left(\frac{d_\mathrm{BS}^2 d_\mathrm{BO}^2}{p(\chi) d_0^4}\right)}$$

0celo7

10:32 PM

Proof?

David Z

just so everyone knows:

52

A: Close the loop on "Too Broad"; make the close reason's actual intent reflected in its message

The description of the "Too Broad" close reason has been changed. This is the new text: Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifyi...

Qmechanic

11:49 PM

I would appreciate it if someone could explain-to-OP/mediate/step-in/vote-to-reopen/vote-to-close here.

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