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                   I've been doing this for thirteen years

As I was reading about the expression problem [1], I couldn't help but think
it sounded very familiar. And then it hit me, I wrote about this nine years
ago [2].

This might be another reason why I took some time off [3]—I've already
written about a lot of stuff.

Twice this year, I've wanted to write about some topic, only to find I've
already written about said topic. For instance, there's this silly [4] series
[5] about [6] solving [7] sudoku problems [8] that I've written about before
[9] (seriously—I thought this was satire at first, until I realized that this
was a serious article by Ron Jeffries, who is a consultant selling this
programming methodology).

The second came about because of the alarm clock incident [10] where I was
reminded of this weird dream I once had [11].

It's sometimes hard to come up with new material.

[1] http://c2.com/cgi/wiki?ExpressionProblem
[2] gopher://gopher.conman.org/0Phlog:2004/10/19.1
[3] gopher://gopher.conman.org/0Phlog:2013/01/06.1
[4] http://xprogramming.com/articles/oksudoku/
[5] http://xprogramming.com/articles/sudoku2/
[6] http://xprogramming.com/articles/sudokumusings/
[7] http://xprogramming.com/articles/sudoku4/
[8] http://xprogramming.com/articles/sudoku5/
[9] gopher://gopher.conman.org/0Phlog:2009/11/04.1
[10] gopher://gopher.conman.org/0Phlog:2013/02/06.1
[11] gopher://gopher.conman.org/0Phlog:2006/01/23.1

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