Due to overwhelming support in favour of participating in Winter Bash 2014, I have informed SE that we're in. (I've locked the two poll answers to preserve the vote totals as they stand now for future reference.)

So... Stack Exchange is planning another Winter Bash. Last year math.SE joined in the fun for the first time. Whether it was successful or not, one thing is certain: THERE WERE HATS!!!

As always, even if math.SE doesn't opt out,1 individual users can still use the "I hate hats" option to hide the inanity.

The event will run between 15 December 2014 and 4 January 2015. There will be new hats and extra features to keep things fresh. On 5 January, all the hats will go back into storage for another year.

So, I ask again: Would you like some hats?

(SE would like to be informed of our decision before 1 December 2014. This will stay open until one option comes out as a clear favourite, or until 1 December, whichever comes first.)

1Okay, there is a difference: this year all sites are considered to be participating unless they inform SE otherwise.

  • 10
    $\begingroup$ Wow! What nice pictures for the poll options. $\endgroup$ Nov 18 '14 at 19:40
  • 1
    $\begingroup$ Add not to downvote answers :) $\endgroup$ Nov 18 '14 at 19:46
  • 1
    $\begingroup$ @Hippalectryon: Thanks for reminding me. $\endgroup$
    – user642796
    Nov 18 '14 at 19:50
  • 1
    $\begingroup$ I hate being identified with Poincare. Can I choose this Hilbert instead? $\endgroup$
    – Asaf Karagila Mod
    Nov 18 '14 at 21:08
  • 2
    $\begingroup$ (Also, ugh, not this again. :() $\endgroup$
    – Asaf Karagila Mod
    Nov 18 '14 at 21:09
  • 2
    $\begingroup$ I hope we don't get this again. We've had it one too many times. $\endgroup$
    – Git Gud
    Nov 18 '14 at 23:12
  • 6
    $\begingroup$ @GitGud You may be understandably tired of it, but about 38% of current users joined the site after last year's bash was over. They never had one. $\endgroup$
    – user147263
    Nov 18 '14 at 23:25
  • $\begingroup$ Note that both these guys are wearing kind of hats. $\endgroup$
    – Asaf Karagila Mod
    Nov 19 '14 at 4:29
  • $\begingroup$ @Asaf: Is that some sort of half-Goodwin? $\endgroup$
    – user642796
    Nov 19 '14 at 5:14
  • $\begingroup$ Arthur, "Any long enough discussion will include at least two photos of Hilbert"? $\endgroup$
    – Asaf Karagila Mod
    Nov 19 '14 at 5:28
  • $\begingroup$ I've already got a Hilbert-hat! $\endgroup$
    – hrkrshnn
    Nov 19 '14 at 13:33
  • 3
    $\begingroup$ I do not need a silly hat, / or any other kind; / I’m really more than certain that / ’Twould just weigh on my mind. $\endgroup$ Nov 20 '14 at 0:05
  • $\begingroup$ What if we vote up both answers? $\endgroup$ Nov 20 '14 at 7:40
  • $\begingroup$ @EpicGuy: That would be equivalent to upvoting skullpatrol's answer. $\endgroup$
    – Nick
    Nov 22 '14 at 10:27
  • 2
    $\begingroup$ @quid: Thanks. Although it took me a moment to understand WB as "Winter Bash" and not as "White Balance". Your reasoning sounds fairly reasonable. I know that I voted no because I hate "fun" (with the quotation marks, I am a fan of fun in general), and I view this bash as a "fun" activity. Not as bad as that horrible "Battle of the Sites" idea from way back, but still not great. (And hey, not to mention offensive to the southern hemisphere!) $\endgroup$
    – Asaf Karagila Mod
    Nov 24 '14 at 12:11


This guy wore hats, and he turned out okay:

enter image description here

  • 15
    $\begingroup$ Will this particular hat be available? $\endgroup$ Nov 18 '14 at 20:21
  • $\begingroup$ @JoonasIlmavirta: The only way to find out is to participate! (Seriously, only the SE employees know for certain what treats are in the works for Winter Bash '14.) $\endgroup$
    – user642796
    Nov 18 '14 at 20:28
  • 3
    $\begingroup$ This is my second-favorite mathematical hat. My favorite is this one. $\endgroup$
    – MJD
    Nov 19 '14 at 0:43
  • 18
    $\begingroup$ Strictly speaking, we only know this guy wore half of a hat - we can't see that that hat has a back side! $\endgroup$ Nov 19 '14 at 2:22
  • 11
    $\begingroup$ @MJD: Euler in his later days went blind. I think he didn't know that he was really wearing his shirt on his head. $\endgroup$
    – Asaf Karagila Mod
    Nov 19 '14 at 6:18
  • $\begingroup$ All we know is that he may have worn half of a hat and that he's dead. Better not take our chances. $\endgroup$
    – UserX
    Nov 24 '14 at 6:06


Serious mathematicians like this guy would never be caught in a crazy cap:

enter image description here

  • 1
    $\begingroup$ Serious mathematicians wear evil-villain glasses? They must have an amzing sense of fashion to realize that hats will class their style :D $\endgroup$
    – Nick
    Nov 22 '14 at 10:01
  • $\begingroup$ I wonder how many voted up this just for the coolness of the picture. $\endgroup$
    – Ant
    Nov 23 '14 at 22:51

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