Communicating by email is very effective as a way to promote rubber-ducking (http://blog.codinghorror.com/rubber-duck-problem-solving/ http://blog.codinghorror.

Communicating by email is very effective as a way to promote rubber-ducking (http://blog.codinghorror.com/rubber-duck-problem-solving/ http://blog.codinghorror.com/rubber-duck-problem-solving/). Unless you want to look like an idiot, you generally take the time to think out and present your ideas in a cogent way when it is through email. Get somebody in a face-to-face or phone meeting, and things go all hand-wavy way too fast.