The h Bar

4:01 AM

Behold

\begin{align}
[M^{ab},P^c] &= 2 i P^{[a}\eta^{b]c} \\
&= i (P^a \eta^{bc} - P^b \eta^{ac}) \\
[M^{ab},M^{cd}] &= 2 i M^{c[a}\eta^{b]d} + 2 i M^{[a|d|}\eta^{b]c} \\
&= i (M^{ca} \eta^{bd} - M^{cb} \eta^{ad} + M^{ad} \eta^{bc} - M^{bd} \eta^{ac})
\end{align}

Sir Cumference

4:26 AM

bolbteppa

The snazzy index notation $M^{[ab]} = \frac{1}{2}(M^{ab} - M^{ba})$ notation is indeed the work of Zeus

Sir Cumference

Neptune :P

Ya didn't watch spongebob as a kid?

Avnish Kabaj

who lives in a pineapple under the sea

bolbteppa

Not enough to remember Neptune haha

Sir Cumference

See @AvnishKabaj knows

Avnish Kabaj

4:33 AM

From teh memes

I grew up watching Pokemon

Sir Cumference

i wanna be the very best

Avnish Kabaj

Heh heh

Sir Cumference

man i miss those shows

GodotMisogi

6:17 AM

physics.stackexchange.com/review/first-posts/247006

This is a glorious answer

Shing

what the heck did I just read?

Sir Cumference

8:39 AM

@GodotMisogi I wonder which will win, John's 5yr old answer or Kyle's

L.K.

10:58 AM

Hi guys! This probably is the most dumbest question ever asked, excuse me for that. But I think physicist drive cars. I'm left with no choice to ask it(there was no auto forum of stackexch).

Does ever car has similar stirring wheel size? (Circumference)

ACuriousMind

I don't drive a car, and there is Motor Vehicle Maintenance & Repair

L.K.

We're planning to give our friend a stirring wheel cover, but we are not sure of size. It's Volkswagen, that's all we know

@ACuriousMind Thanks , I'll check it

Anonymous

@L.K. Nope. C.f. Steering wheels Size Chart.

L.K.

@Blue Thanks, lemme check

Anonymous

@L.K. Which model is it?

L.K.

11:05 AM

@Blue Volkswagen hatchback 2014 model. I'm sorry for not being specific, I don't know more than this, unfortunately.

Anonymous

@L.K. This chart might come handy for Volkswagen cars. Good luck. :)

Anonymous

If it's a 2014 model I'm guessing it's a Polo or a Golf?

Anonymous

Or it could be a Beetle, lol. That's one of the weirdest cars I've ever sat inside. You need to fold the front seats to reach the back seat. There are only 2 doors! And it does look like a beetle. :D

ACuriousMind

@Blue ...you think "only two doors" is a characteristic special to the Beetle? :P

Many older/smaller models have that

Anonymous

@ACuriousMind There could be others, but I never noticed. Those cars are rare here. :P

ACuriousMind

11:14 AM

Almost everyone I know had a first car that was of that type

Anonymous

@ACuriousMind Did those have a back seat though?

ACuriousMind

@Blue sure

Anonymous

Lol, must be a German thing then?

ACuriousMind

Cars with only front seats are for rich people, not for students who need to drive their drunk pals around :P

L.K.

@Blue I think I was wrong about the year. THis looks closest to the actual car

Anonymous

11:15 AM

@L.K. That looks like the Polo to me.

Loong

@Blue That's a Golf.

ACuriousMind

@Blue I wasn't under the impression that it is, but then again, how am I supposed to tell? :P

Loong

@Blue No.

L.K.

@Loong Aah ok. I'm really novice in the cars

Anonymous

11:18 AM

Oh, this is the Polo.

Anonymous

This is the Golf. They look very similar (until you notice the sides).

L.K.

@Blue Both(what I sent) looks close, just taken from different angles :P

Anonymous

@L.K. Yeah. I've only seen the Polo IRL. :P

Anonymous

@Loong Really?

Anonymous

11:20 AM

European thing then?

Loong

@Blue Yes. Especially Volkswagen models grow from one generation to the next. So a new Polo might look like an older Golf.

@Blue That could be true.

Anonymous

I see. Two door cars are extremely rare here. I guess there would be only around 100 in my city (which has millions of cars).

user2723984

can confirm, two doors cars all over the place where I live too

John Rennie

My car has two doors ...

Loong

11:37 AM

Mine has five

Anonymous

@Loong Including the back door? SUV?

Loong

yes

Anonymous

Oh, that's quite common here too.

John Rennie

That's the model of my car. Not my actual car because I can't be bothered to get up and take a photo of it.

2

Anonymous

@JohnRennie What car is it? :D

Anonymous

11:41 AM

The logo is hazy.

John Rennie

Ford Focus

Loong

53 secs ago, by John Rennie

That's the model of my car. Not my actual car because I can't be bothered to get up and take a photo of it.

Anonymous

@JohnRennie Oh, nice. Looks small and comfortable. :)

John Rennie

@Blue it's a nice car. Not amazingly powerful but nippy enough to be fun.

Anonymous

@Loong Heh, that's a big family car. :)

John Rennie

11:43 AM

In my youth I used to drive all sorts of crazy cars, but ... well ... I got middle aged :-)

ACuriousMind

@Blue I think it's mostly so big to deal with the moose.

Loong

@ACuriousMind I prefer to use my brakes for that.

Anonymous

@ACuriousMind Wut? You mean Loong has encounters with moose on the road to office? :P

Loong

@Blue yes

Anonymous

Lol

ACuriousMind

11:45 AM

Sep 4 '18 at 17:00, by Loong

@vzn I have to drive slowly. We have moose on site. ;-)

Anonymous

Might as well buy a bus or truck (to scare them away). ;)

Loong

Moose can be stupid. You should just stop in a distance and wait.

John Rennie

@Blue carry a "Moose recipes" cookery book.

Loong

Anonymous

@Loong Did you ever use "moose were blocking my road" as an excuse for being late? :P

Anonymous

11:51 AM

@JohnRennie Lololol

Loong

Car of a colleague:

Anonymous

Oh boy.

GodotMisogi

@Loong His/her ex-boyfriend/girlfriend's work?

John Rennie

@GodotMisogi not unless his ex girlfriend was a moose :-)

Loong

We don't date moose; we are not in Norway. ;-)

5

Anonymous

12:01 PM

@GodotMisogi Could be the ex's pet moose though. :P

John Rennie

I'm guessing this is a similar meme to the English jokes about Welshmen dating sheep?

GodotMisogi

I realise I forgot to add a hundred other gender pronouns

Anonymous

@GodotMisogi No need. :P

Loong

@JohnRennie I think it's from an old German comedy.

user351417

1:55 PM

@EmilioPisanty There is a somewhat subtle reference to that drama in the blog, if I'm not mistaken.

user351417

> So in 2019 we’re going to be redoubling our efforts on this, adding more devs, designers, PMs, and community managers internally (in fact, we’re hiring right now.) They’ll be split across two major initiatives: continuing the Welcome Wagon work of making Stack Overflow more welcoming and inclusive, and a newly focused effort on community improvements and expert user experience.

user351417

(not that it counts for much though)

Loong

2:13 PM

@Chair also directly above that:

> One thing we’ve heard loud and clear from the community is that we need to also address a lot of existing bugs and community debt. These issues have accumulated over the years to lead to confusing and frustrating experiences for all of our users, and we haven’t been doing enough to prioritize fixing them.

But "continuing the Welcome Wagon work of making Stack Overflow more welcoming" looks like they still have a problem with their priorities.

user351417

@Loong Hmm, yeah. The 'heard loud and clear' bit is also a euphemism for 'received severe criticism'. But you're right, they've still emphasized the whole welcome wagon thing so that it almost looks like they're hiding the chaos behind a mask which a lot of people dislike.

Loong

Especially since a previous blog post showed that the Welcome Wagon thing was not needed:

Welcome Wagon: Community and Comments on Stack Overflow

Julia Silge & Jason Punyon on December 04, 2018

This past summer, we wrote our first blog post about comments on Stack Overflow, focusing on our initial work rating comments internally at Stack Overflow and what we learned. Since then, we’ve fielded this comment rating task more broadly in our community. This blog post shares some of what we are learning.

I (Jason) wrote a web application that presents a user with a comment thread from a post on Stack Overflow and asks the user to rate each comment in the thread as fine, unwelcoming, or abusive. Our first blog post shared results from when we asked employees at Stack Overflow, includin …

Loong

2:33 PM

> Notice that Stack Overflow employees rated more comments as unwelcoming than other groups but agreed with each other about what is unwelcoming and abusive at higher rates at the same time.

ACuriousMind

@Loong Pet theory: The difference between SO employees and the other groups is that SO employees have more of a "shared culture" than the others. This means they're more likely to agree as a group on how to interpret more subtle cases of "unwelcomeness", while the other groups are disparate and generally stick to (and only agree on) the more clear-cut cases.

Loong

plausible

> What? That’s the conclusion you drew from that data? The conclusion I drew from that data is that SO employees are more likely to misidentify a comment as problematic compared to the other groups. That is: there’s a self-selection bias that you, as a Stack Overflow Employee, have made about the data.

– from the comments

user351417

@Loong That's a bit unnecessarily accusatory with the tone, though it's not without reason. One is inclined to believe that SE employees will be more likely to want to remove anything that looks slightly problematic or even see problems where there are none, simply because it looks bad on them since SE is hosting this whole gig.

user351417

2:49 PM

They're obviously on the lookout for that content so they could easily see things in a skewed way, or choose a more harmful interpretation.

user351417

...while a lot of others may start every interaction with the phrase 'assume good intent'.

ACuriousMind

The proper reading is not that SO employees are misidentifying comments (meaning they're objectively wrong), but that their idea of what is problematic is broader than that of the other groups.

Since they agree with each other, it's not that they're just randomly marking stuff as problematic - they have a working model of "problematicity" that they're consistently applying. It's just not the model the other groups are using (which is likely just a paint job of a model for "offensive" or "rude")

danielunderwood

4:12 PM

I think python computation frameworks are the new web frameworks. Everyone has to write their own

Anonymous

7:06 PM

There's nothing "perfect" about the disgustingly ugly typesetting that puts the two subscript "n"s at different heights, presumably because of the way the upright "d" was implemented in the package. If that's an example of the best it can do, it belongs in the trash can IMO, and doesn't belong anywhere that claims to use LaTeX in a professional way. — alephzero 2 hours ago

Anonymous

Heh.