Textism is crap, as I discovered when trying to format the code snippets that I wanted to put into this post.
The post I wanted to write is at
http://blogs.usyd.edu.au/labrats/2008/03/on_randomization_monte_carlo_a_1.html
It describes how I took a Perl implementation of the Fisher-Yates shuffle and made it work for scalars, where the scalars in question are chromosomes.
When are Nature Network going to implement real HTML?