It's not. People think that because inventions tend to result from tinkering that the two are causally related. They're not. Tinkering is merely one of the ways

It's not. People think that because inventions tend to result from tinkering that the two are causally related. They're not. Tinkering is merely one of the ways to provide a mental space in which invention can occur; invention itself is not engineering. Implementing the invention is.