When did we stop learning to enjoy the moment?

I was driving down a beautiful section of town recently and saw a woman on the path next to the road who was roller blading while pushing her baby’s carriage and speaking on her cell phone at the same time. And I had to wonder if she was actually able to enjoy the brief moment of sunshine Anchorage was having or the sensation of the wind blowing in her face while she pushed her baby and listened to the newly hatched birds chirping for dinner from their parents.

Why have we seemingly lost the ability to simply enjoy the moment we’re in without the need to add sensation upon sensation to our brains until no one sensation can truly provide us with a simple moment of brief respite from our daily world?