The coal miner.
There was once a boy named Ken. He was a coal miner. He started a new job, working in a coal mine in a very rural place, which was known for producing very low quality coal. The mine had just opened, and was doing things very differently. They had a very different way of digging which by all appearances produced much higher quality coal. Ken worked there for four years, getting to understand this new method of digging. He developed and learned new digging practices and refined them. Eventually the day came where Ken decided he needed to move to a bigger city. He needed to go somewhere that he could meet some more people, and have more to his life than just coal digging. He had heard of this coal mine in a big city on the other side of the world who was doing similar things to what the rural mine had been doing. It too was developing similar ways of mining coal and he thought he could go and contribute to what was being done there, maybe teach some things, maybe learn some new way