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  • Here comes Cliff's attempt to make a story that never ends:

  • A recursive story - it's a story that swallows itself!

  • I'll be my own subtitle.

  • "Once upon a time, 108 rebels gathered on the lakeshore.

  • Their leader, Song Jiang, turned to his captain, and commanded: "Tell us a story!"

  • So the captain began, "Once upon a time, 108 rebels gathered on the lakeshore.

  • Their leader, Song Jiang, turned to his captain, and commanded: "Captain! Tell us a story!"

  • So the captain began, "Once upon a time" -

  • Okay, the story keeps swallowing itself.

  • Ever computer scientist know the difference between 'recursion' where you have something going deeper and

  • deeper into its own self, and 'iteration' where you do a repeat of the same thing on slightly different data.

  • Boy, this will be a challenge for me. [Sorry, but I don't speak Chinese.]

  • I hardly even know any Chinese [yeah, me too] but I'm gonna try doing this in two languages.

  • [Chinese word for English, I guess] - I'll use English and I'll use [Chinese word for Chinese?] - Chinese.

  • And instead of doing it on a ribbon like this I'm gonna see if I can do it on a Möbius loop.

  • So here comes Cliff's Möbius story:

  • Okay, be prepared for lots of mistakes. I apologise in advance.

  • The story will be a recursive story that has no end. But I'll iterate between languages.

  • If I knew five languages I'd try it with five languages. But let me just make mistakes in two.

  • "Once upon a time, 108 rebels gathered on the lakeshore.

  • Their leader, Song Jiang, turned to his captain and commanded: "Tell us a story!" (using Chinese).

  • So his captain began:

  • [Presumably the same story as before, in Chinese.]

  • [Basically the same story as before] [Might talk a little bit as well.]

  • [Basically the same story as before] [Hi there, people from the internet!]

  • [Basically the same story as before] [How are you doing?]

  • [Basically the same story as before]

  • "Once upon a time, 108 rebels gathered on the lakeshore."

  • And that's on a Möbius loop.

  • You say: "What a weird story!" Well, more that a billion people in China all know this is one of the great stories

  • of China where 108 rebels work against the corrupt administration.

  • This book 'Outlaws of the Marsh tells the story of fantastic acrobatics, fantastic rebellion. Each individual -

  • there's chapters about people who -- boy, you wouldn't want to meet them on a street corner.

  • These are guys who - one after another - come along with hatchets, with knives and they are all rebels

  • who are fighting together under their leader, Song Jiang, who is, of course, badly treated by the administration.

  • I'm heading back to my hot chocolate and I assume that as a math lover, you know about the 'Droste effect'.

  • I assume that as somebody who knows math you already know that on 'Droste hot cocoa',

  • on the cocoa box, is a drawing of a woman who's coming in carrying a plate that has a serving of

  • 'Droste hot cocoa' of course, and a box that has her on it, and in the middle of it is a box with her on it.

  • It's a recursive box. Indeed, this kind of recursion in advertising is called the 'Droste effect'.

  • For those who speak English I'm about to apologise for my terrible Chinese. [A lot of mixed English and Chinese coming up.]

  • My Chinese is not very good. I have just about forgotten all of my Chinese.

  • Forty years ago I studied Chinese.

  • I also taught astronomy at Nanjing University

  • in 'purple mountain observatory' over in southern China.

  • But right now I've pretty much forgotten my Chinese, so again I apologise, but I still have just happy thoughts

  • whenever I try to use Chinese.

  • ...like a thousand made. Come on over, check this out.

  • Under my house is a,

  • is my little forklift robot to go pick Klein bottles from stock.

  • Tilt the thing, if you look carefully at it, see if I can actually show this...

Here comes Cliff's attempt to make a story that never ends:

字幕と単語

ワンタップで英和辞典検索 単語をクリックすると、意味が表示されます

B1 中級

ネバーエンディングストーリー(とドロステ効果) - Numberphile (The Neverending Story (and Droste Effect) - Numberphile)

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    林宜悉 に公開 2021 年 01 月 14 日
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