Before email, if you wanted to write to someone, you had to invest some effort in it. You’d sit down with pen and paper, or at a typewriter, and carefully compose a message. There wasn’t anything about the medium that lent itself to dashing off quick notes without giving them much thought, partly because of the ritual involved, and the time it took to write a note, find and address an envelope, add postage, and take the letter to a mailbox. Because the very act of writing a note or letter to someone took this many steps, and was spread out over time, we didn’t go to the trouble unless we had something important to say. Because of email’s immediacy, most of us give little thought to typing up any little thing that pops in our heads and hitting the send button. And email doesn’t cost anything.
Sure, there’s the money you paid for your computer and your internet connection, but there is no incremental cost to sending one more email. Compare this with paper letters. Each one incurred the price of the envelope and the postage stamp, and although this doesn’t represent a lot of money, these were in limited supply – if you ran out of them, you’d have to make a special trip to the stationery store and the post office to buy more, so you didn’t use them frivolously. The sheer ease of sending emails has led to a change in manners, a tendency to be less polite about what we ask of others. Many professionals tell a similar story. One said, “A large proportion of emails I receive are from people I barely know asking me to do something for them that is outside what would normally be considered the scope of my work or my relationship with them. Email somehow apparently makes it OK to ask for things they would never ask by phone, in person, or in snail mail.”
Most emails demand some sort of action: Click on this link to see a video of a baby panda, or answer this query from a co-worker, or make plans for lunch with a friend, or delete this email as spam. All this activity gives us a sense that we’re getting things done – and in some cases we are. But we are sacrificing efficiency and deep concentration when we interrupt our priority activities with email.
Daniel J Levitin writing in The Guardian