Only rarely do you write emails were the message is complex enough that writing will force you to think it through carefully, which is the (very real) benefit the author is referring to. Someone said writing shows you how sloppy your thinking is, and math (and code to a lesser extent) shows you how sloppy your writing is.
> Only rarely do you write emails were the message is complex enough that writing will force you to think it through carefully, which is the (very real) benefit the author is referring to.
Actually, I used to, and occasionally still do. The problem is that no one reads them. People's attention span is quite short, and they get too many emails. When they see an email with 3+ paragraphs, and they also see they have 20 more emails in the inbox to go through, they just mark the email to read for later, and later never happens.
