What Does Dotting the I and Crossing the T Mean?

What is the story behind What Does Dotting the I and Crossing the T Mean? Read our comprehensive breakdown here.

When writing in script, if one does not cross their t’s and dot their i’s, the uncrossed ‘t’ can be misread as an ‘l’ and the undotted ‘i’ can be misread as an ‘e’ or even an ‘l’. Hence this idiom is implying that a seemingly minor error can in effect become a major one.