It is important that we share our knowledge, because this evolves the human race. And yes, learning how forks can be made is certainly one of those skills. But any skill is by definition less effective if it is not passed on to our children. This is not only true when society progresses, but even more important when a sudden setback requires us to access ancient skills.
That is why I bring together many different skills, and connect them. This for instance tells about the mass production of forks, trowels, fuel tanks, and a few more things.