How to write about zero. Are your emails accidentally rude? PAPST.

1003. This week, we look at zero — what a weird number! It has two plurals, sometimes you use the word and sometimes you use the numeral, and it gave rise to a bunch of idioms in the World War II era. Then we turn our attention to email. Generational differences can lead to misunderstandings. We explain why and how to avoid them.