A simple Spawning Reader moving through the text of Misspelt Landings

A 'simple reader,' in ochre, spawns infertile (non-spawning) perigram readers, in gray, if words in any and all of its neighboring directions complete perigrammic 3-grams. These spawned readers can only travel in the direction that they were spawned and they die if the next word in that direction does not complete a 3-gram.

 
Screen-capture video from custom software
Java Applet, using Processing and Rita
Cayley & Howe, 2011