Duck Duck Goose  -- Evolution for Survival
 
	Usage:
		tclsh duckduckgoose.tcl

Only uses Lithium4 langauge (right now).

Creates a directory _duck_$$, with 200 files,
each containing one random program (a seed),
represeting a "blog" for 200 different "bloggers".

Random individuals read a random neighbor's blog.
They execute the last 20 lithium programs on that blog.
One of the lithium instructions can cause the reader to
write a lithium string to their own blog.