Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

1. "Us" is the Ruby community (and arguably programming at large)

2. https://en.wikipedia.org/wiki/Printer_Command_Language

3. https://en.wikipedia.org/wiki/Spooling#Print_spooling

4. They are individual titles of each page

5. yes, this was a puzzle of sorts, though the answers were kind of given to us beforehand, so you can argue that it wasn't a difficult puzzle. The PDF is the "answer" to the puzzle, if you will.



Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: