What the Heck is Electronic Mail?
globalnerdy.com
globalnerdy.com
Even something that seems obvious like email at one time seemed mysterious. Why would anyone besides a nerd have wanted it in 1985? It was feature-poor compared to paper and most people had never heard of it. If few of your friends and business contacts had email, why would you want it?
What are we inventing today? And how will we explain it to the rest of the world?
The almost-a-cliche-easy example is Twitter: I have never been able to explain Twitter sufficiently to those who do not follow web tech closely. Suddenly, Oprah is banging out tweets in capital letters, and Shaq is correcting her 'netiquette. What happened?
Twitter doesn't generally have the same input speed limitations, so an artificial limit serves to prevent information overload.
Of course, many smart phones have full keyboards now, and people are starting to use other things than SMS from their phones.