ok, tbeek has demanded your attention.
cave man A and cave man B were out hunting, as they did 8 hours every day. cave man A said "look B, this hunting thing would be easier if we put sharp rocks on our spears. i know where to get the rocks and i know how to make them sharp, but i can't spend time doing it if i have to hunt every day. if you will provide food and firs for me so that i can make sharp rocks, i'll pay you back with the sharp rocks for your spear and if others buy my sharp rocks with food and firs, i'll pay you back with a % of that too". cave man B thinks it sounds like a pretty good idea, so he says yes.
pretty soon, cave man A is making so many sharp rock spear tips that not only has he paid back cave man B, but he has hired cave man Bs son to make sharp rocks also. so many people are paying him with food and firs that he decides to start and food and fir trading business and hires Bs daughter to manage it. meanwhile, cave man B doesn't have to work so hard because he's getting part of the return from As business. this gives him time to sit around and play with stick....and one day...he discovers fire!!
soon A is know as Ugg, maker of pointy rock spear tips and is honored throughout the land. of course, the elders take note. they notice that Ugg and B have an obscene amount of food and firs and demand that they "share".......