Friday, December 16, 2005

Self-Referential Beauties

A few weeks ago, I started thinking about this puzzle.

In this sentence the number of occurrences of 0 is ____, of 1 is ____, of 2 is ____, of 3 is ____, of 4 is ____, of 5 is ____, of 6 is ____, of 7 is ____, of 8 is ____ and of 9 is ____.

The goal is to fill out the blanks with digits that make the sentence correct. There are two answers -- one is reasonably challenging and one is super clever (I'll post answers in a few days).

But recently, I came across this amazing text. Like a beautiful Escher painting, the following self-referential text is an absolute beauty:

* Write down ten `a's, eight `c's, ten `d's, fifty-two `e's, thirty eight `f's, sixteen `g's, thirty `h's, forty-eight `i's, six `l's, four `m's, thirty-two `n's, forty-four `o's, four `p's, four `q's, forty-two `r's, eighty-four `s's, seventy six `t's, twenty-eight `u's, four `v's, four `W's, eighteen `w's, fourteen `x's, thirty-two `y's, four `:'s, four `*'s, twenty-six `-'s, fifty-eight `,'s sixty "'s and sixty `"s,

in a palindromic sequence whose second half runs thus

::

suht snur flah dnoces esohw ecneuqes cimordnilap a ni

,s"` ytxis dna s'" ytxis s',` thgie-ytfif ,s'-` xis-ytnewt ,s'*` ruof ,s':` ruof ,s'y` owt-ytriht ,s'x` neetruof ,s'w` neethgie ,s'W` ruof ,s'v` ruof ,s'u` thgie-ytnewt ,s't` xis ytneves ,s's` ruof-ythgie ,s'r` owt-ytrof ,s'q` ruof ,s'p` ruof ,s'o` ruof-ytrof ,s'n` owt-ytriht ,s'm` ruof ,s'l` xis ,s'i` thgie-ytrof ,s'h` ytriht ,s'g` neetxis ,s'f` thgie-ytriht ,s'e` owt-ytfif ,s'd` net ,s'c` thgie ,s'a` net nwod etirW *

This is simply amazing! I wonder if it's possible to construct such a sentence in other languages too. I guess I really sound like a geek.

5 Comments:

Blogger Unknown said...

Of course you can find this kind of sentences in other langages; We had (we have) in France a literary movement called l'Oulipo (Ouvroir de litétrature Potentielle) who played (plays) this kind of games. They published several books. And some of the members are quite famous. One of them, Georges Perec, wrote a book (La disparition) without the letter "e" which is quite common in french. Another one invented sentences he read on a tape recorder, he reversed the tape (which could be easily done in the seventies with the tape recorders of that time) and it gave another sentence one could understand. A kind of technological palindrom.

12:27 AM  
Anonymous Anonymous said...

what s the solution?

8:40 PM  
Anonymous Anonymous said...

its complicate!

8:40 PM  
Anonymous Anonymous said...

solution?

10:06 AM  
Anonymous Anonymous said...

oh...i cant figure the solution

3:37 PM  

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