There are lots of reasons email persists, even as faster and simpler forms of communication proliferate and your personal communications likely have mostly migrated elsewhere. But one big one is that new types of media channels rarely totally kill off old ones, even though everyone predicts they will.

For many years, even as users became more sophisticated, personal computers took too much effort to use without problem-solving, keeping alive the yearning for greater simplicity. Microsoft's dominant Windows platform, in particular, was a home for all manner of bugs and problems that required IT people to straighten out.

It's often hard to remember that the personal computing era is still quite young. It only dates from 1977, with the arrival of the first mass-market PCs.

Walt Mossberg Quotes