On machines

Sometimes, I watch videos about how various things in society are manufactured, such as books, or money, or computers. What astounds me are the really complex looking machines that are in place to deal with the entire assembly chain of processes for the manufacture of the product. I wonder how these machines come into being. It certainly takes a feat of industrialization over a period of time for a society to develop these machines. I can roughly guess a certain process needed for industrialization from the start of a rather rudimentary technological society. It’s like, human beings create machines to create more technologically advanced machines, and these in turn create even more advanced machines until what you see today are really complex looking machines that are not readily made by the use of human hands alone, but which are really, in quite an amazing feat of planning, the development of complex machines that stems from the initial use of human hands with simple tools. It probably takes an engineering class of really smart people to make such stuff.