Also: > As it turns out the entire flow at the post office (or DMV or tax office) is about exception handling. No amount of software is going to get you out of

Also: > As it turns out the entire flow at the post office (or DMV or tax office) is about exception handling. No amount of software is going to get you out of there because it is piecing together a bunch of inputs and outputs that are outside the bounds of a system. Not sure how the author arrived at this conclusion, either. Both entities (USPS and DMV) have elaborate rules for how business gets done. The USPS in particular has rules that cover shipping everything imaginable, often via different methods. The outputs are quite simple: USPS ships your package; DMV provides your license or vehicle registration.