If you use a calculator and then carefully design out the logistics & geometry of your factory, you can build stuff that basically "just works" once you iron ou

If you use a calculator and then carefully design out the logistics & geometry of your factory, you can build stuff that basically "just works" once you iron out the missing inserters & power poles. You get bottlenecks when you focus on one product at a time instead of looking at how the system as a whole functions.