If you're old enough to remember the "Good Old Days", you're probably marveling at how things have changed.
In the "Good Old Days", people would write letters to people when they wanted to communicate to them. They would call people on the phone, and telephones were only located in homes. If you called someone, and that person wasn't home, they didn't always know you called unless you were one of the people who were rich enough to have one of those new-fangled answering machines.
Thirty years ago, people were accustomed to waiting for the things they wanted. As time went on, and as technology advanced, they began to get a little bit more impatient. Now, if you're using your iPhone to access Facebook, and it takes more than a few seconds, you consider getting a newer cell phone model.