4chan solved part of math problem puzzling scientists for decades

4chan解決了困擾科學(xué)家數(shù)十年的難題（的一部分）

真正的標題 4chan自閉肥宅們竟恐怖如斯，一切都在團長預(yù)料之中

團長永不過氣

Apparently part of the solution to a difficult mathematics problem has been available for years on a 4chan board about anime. The anonymous author provided it as a tip about how to best watch a non-linear series.

在一個數(shù)學(xué)難題的解決方法求解帖掛在4chan動漫版塊數(shù)年之后，一位匿名作者提供了如何最優(yōu)觀測非線性數(shù)列的竅門。

The amusing story where anime and science intersected was brought to light by Robin Houston, a computer scientist and mathematician on Twitter.

這個故事的有趣之處在于將原本割裂的動漫與科學(xué)合一爆發(fā)出璀璨光芒，提出者是Robin Houston，一位計算機科學(xué)家與數(shù)學(xué)家。

The problem in question comes from the math field of combinatorics and deals with permutations. A permutation is an act of changing the arrangement, especially the linear order, of a set of items. For instance, the numbers 1, 2 and 3 can be arranged in six different ways, i.e. there are six possible permutations for three elements. A superpermutation is a string that contains all possible permutations of a set as sub-strings.

我不希望在畢業(yè)后還看到數(shù)學(xué)問題，所以此段略過。

In more practical terms, say there is a series of several episodes labeled not chronologically, but absolutely arbitrary. And the series is so bad that you have no way of determining the correct order from the content. If you are determined to watch them the right way at least once, you can start a marathon, playing the episodes again and again until all possible order variants are complete.

說人話的話，就是一個系列劇集不是靠時間順序排列，而是完全隨機的，而糟糕的是也沒辦法靠內(nèi)容確定真正的順序。如果你真的想來上一遍以確定正確順序，你就要來場馬拉松了，把它們看上一遍又一遍直到看完所有可能性。

The example may seem hypothetical, but it was not for fans of an anime called “The Melancholy of Haruhi Suzumiya”, the first season of which contains 14 episodes. It was broadcast in a non-chronological order – as an acknowledgment of its theme of time travel – so fans of the anime have a fad of rearranging and rewatching it again and again.

這似乎就是一個假設(shè)，但對于《涼宮春日的憂郁》粉絲們來說可并非如此，因為它的第一季有14集，而且眾所周知由于以時間旅行為主題，粉絲們也樂于改變順序不斷重新觀看。

So in September 2011 somebody asked on 4chan how long it may take if one were to watch Haruhi in every possible order. And another anonymous poster offered a solution – thus solving the problem of the lower bond for the minimal length of a superpermutation. Jay Pantone, a mathematician at Marquette University, translated the 4chan solution into a formal layout for mathematicians and believes the proof holds up.

所以在2011年9月，有人在4chan上提問如果要看完涼宮所有可能順序要多長時間，另一位匿名答主給出了解決辦法（數(shù)學(xué)問題一概略過，腦殼痛）

As for the answer to the original Haruhi marathon question, Pantone said one would have to watch no less than 93,884,313,611 episodes and no more than 93,924,230,411 episodes to accomplish the task. Good luck with that.

另外有人給出了這個問題（涼宮集數(shù)猜想）的答案，Pantone稱一個人要想看完所有可能性那么需要看上不少于93884313611集且不多于93924230411集，祝你好運。


評論：

Kritiker
One day 4chan will use their organized autism to find a proof if god exists and how to travel back in time.

總有一天4chan人士將會依靠他們的自閉癥患者軍團們來證明上帝是否存在和能否進行時間旅行。

Eduardo Fonseca Luna
I do not understand anything about this math problem. But this is all I have to say: when people work together, great things happen. Do we need a genius? Yes. But collective work is even better.

俺是看不懂這玩意，但俺尋思團結(jié)就是力量，相較于天才集體更強大。

AzrialNimrod
Has weaponized autism gone too far?

將自閉癥們武器化項目已經(jīng)進展的恐怖如斯了嗎？

—Azrial
Not far enough yet.

還未夠班口牙。

CrazieCanuck
Weaponized autism to the rescue.

武器化才是拯救自閉癥們的出路。

Gerry Radon
Forget what they say about the chan boards , 4ch and 8ch, there is a treasure trove of info provided there and some very intelligent discourse.

忘了對4ch和8ch的評論吧，那里還是有埋藏的箴言和智慧的討論的。

FreshThought
I didn't know this puzzled scientists for decades. Why didn't they ask me?

我不懂為何這會困擾科學(xué)家?guī)资?，為毛不問我呢?br/>
James Robertson Daneke
It was me, but I don't want publicity. ;)

其實那人是我，只是我不想出名。

IG牛逼?。?！