On Wed, Mar 26, 2008 at 08:26:35PM +0100, James Fuller wrote:
: oh ya and the ability to mate .... right we can
: leave the last one off ;)
No we can't. That is *precisely* what this whole business of derivable
grammars is about, and it came about because you couldn't mate two
source filters in Perl 5 and end up with viable offspring. Biology
has more or less solved this by making point mutations *point* mutations.
Source filters are more like a blast of gamma rays to the entire genome.