Technology & Priorities
Mega Units/Geographical boundaries grouped together as Mega bunches,with particular Developmental score,are usually neighboring countries with almost similar technological and developmental scores.Diamond blocks would be covering for these aspects plus the rotations.
Priorities would be different, mostly dependant upon the basics contributing to country's economy (eg gadgets/drones/robots etc for agriculture) ,and above that,the gadgets and technological development "helping" in extremes of Temperature i.e
-Temperature
-Food
-Telecommunication
-Medicines
-Quality of life
-Transportation and other aspects
-Defense