The thing they (MM) need to do is get the map editor working so all those values in the abilities.txt can apply to planets/systems correctly.  The starting points are there for adding any number of different variables to planets but they are not followed through.(you could add a 500point bonus/turn to research for 'all knowing hermit in residence', or 'radioacitve crystals add to production' 5%total bonus on radioactives, or 'organics lacked for proper birth control' +5% bonus to reproduction, etc)  These values are there and CAN be applied to planets.  They just don't work.  
 
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"The Empress took your name away," said Chance.
Owen smiled coldly.  "It wasn't hers to take.  I'm a Deathstalker until I die.  And we never forget a slight or an enemy."  -Owen Deathstalker.