This is an excellent answer. When you read their blog you realize that all those points have guided the current design of the game. There was multiple iteration

This is an excellent answer. When you read their blog you realize that all those points have guided the current design of the game. There was multiple iteration of the tech tree to invite the player gently into the different "phases" of the game. (see https://www.factorio.com/blog/post/fff-275 https://www.factorio.com/blog/post/fff-275). They carefully thought about the name of things, the cost of things to communicate clearly to a new player what he is supposed to do next (manufacture new thing, ramp up the production of old thing, etc).