Lines, by definition, are also infinitely thin and extend infinitely far. By definition, they cannot exist in our world of atoms. :) When people use the word l

Lines, by definition, are also infinitely thin and extend infinitely far. By definition, they cannot exist in our world of atoms. :) When people use the word line to refer to something in the real world, there are often some unstated assumptions baked in. I guess it's important for the consultant and the client to have the same understanding of what those unstated assumptions truly are.