It occurred to me today that opening doors brings a lot of pleasure to a lot of people. What I mean is, it makes one feel good to open a door for someone or hold a door open. There's an almost impercetible feeling of well being gleaned from the process... a little smile, a thank you. A moment shared between two people that have maybe never even spoken before. It works the other way too. If a door is held open for you it gives you a warm feeling that a person took the trouble.
The point of my story is: In the 23rd or the 24th century in Star Trek, all doors seem to be automatic, opening in front of anyone who draws near. This is possibly a generation of people who have never experienced the joy of door opening. It must be a somehow more hollow world.