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When I saw this, I almost immediately asked myself, what would be the average length of your walk when you would land somewhere? There are many short walks, but also some much longer walks. What would be the length if the image was infinite in all directions? Could you land in an infinite walk? I paged through the book (which can be downloaded freely) and did not find any of these questions being addressed.

You can also look at the dark blue parts as walls. Below gives some output where the light blue parts are made in much wider pathways and there are walls added on the side.

Now you could ask yourself the question of what is the chance that there is a path from the top to the bottom for every given height with a given width. Of what is the chance if you start somewhere on the top, you can reach the bottom? When I posed some of these questions on Slashdot someone mentioned percolation theory.

If you create another pair of exits on the sides of the mazes it must be the case that if you enter from the top, you must exit at one of these exists. Through the other exit on the side you always arrive at the exit at the bottom. (You can never arrive at the bottom, because that would mean that the exits at the sides are connected and that somehow the two walks must cross some where.) In a sense this is much like the basic unit of this random maze. This means that each diagonal bar from a maze can be replaced by a random labyrinth with four exits. Below six smaller random labyrinth are give that could serve as building blocks. This suggests that there is some scale invariance at play. This may also hint at some of the other questions I have been raising.

column 11 13 23 24 25 33 34 1 7 8 10 2 1 8 8 8 3 8 6 10 1 4 1 9 5 8 2 5 13 5 7 6 8 9 8 7 9 7 9 8 7 9 9 9 9 7 8 1 10 7 15 3 11 8 10 7 12 15 6 4 13 9 8 8 14 6 12 7 15 7 12 6 16 5 11 9 17 7 11 7 18 7 11 7 19 6 12 7 20 1 9 8 7 21 11 6 8 22 9 7 8 1 23 1 6 5 12 1 24 6 10 9 25 8 6 11Furthermore the algorithm concluded that an equal distribution of the codes 23, 24, and 25 was the most likely. Knowing the number of errors in the reproductions of Komputerstrukturen 1a and Komputerstrukturen 4a, it is likely that the 10 out of 625 different codes are caused by errors in the reproduction. Under the assumption that each different code is caused by a single reproduction error, a code 11 could have been a code 24 or 25, a code 13 could have been a code 23 or 25, a code 33 could have been a code 23, 24, or 25, and a code 34 must have been a code 24. This means (under the given assumption) that we are only sure of one reproduction error. One could argue that some error is more likely to have occured than others, but taking into account that column 10 has only three codes 23, it seems that the changes are not far apart. The list of (possible) reproduction errors is (where columns and rows numbers refer to single black/white squares):

- Row 1, column 45: changed black to white or

row 2, column 45: changed black to white. - Row 4, column 3: changed black to white or

row 4, column 4: changed black to white. - Row 7, column 17: changed white to black,

row 8, column 17: changed white to black, or

row 8, column 18: changed white to black. - Row 9, column 39: changed black to white or

row 10, column 39: changed black to white. - Row 23, column 46: changed white to black.
- Row 29, column 43: changed white to black,

row 30, column 43: changed white to black, or

row 30, column 44: changed white to black. - Row 43, column 7: changed white to black,

row 44, column 7: changed white to black, or

row 44, column 8: changed white to black. - Row 47, column 5: changed white to black,

row 48, column 5: changed white to black, or

row 48, column 6: changed white to black. - Row 48, column 7: changed black to white or

row 48, column 8: changed black to white. - Row 49, column 7: changed white to black,

row 50, column 7: changed white to black, or

row 50, column 8: changed white to black.

- Row 4, column 41: changed white to black.
- Row 4, column 42: changed black to white.
- Row 8, column 6: changed black to white.
- Row 8, column 25: changed white to black.
- Row 8, column 27: changed white to black.
- Row 8, column 35: changed white to black.
- Row 22, column 11: changed white to black.
- Row 22, column 12: changed black to white.

I went home throught the city center and at bookshop De Slegte I bought *Gesprekken met Simone de Beauvoir*
(*Interviews with Simone de Beauvoir*) by Alice Schwarzer,
ISBN:9789067660273, for € 0.50.

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