Paul Curtis was having a quiet Friday evening. He’d decided to stay in and keep his elderly cat company. As he reclined on his couch with his ancient and arthritic cat contentedly curled up on his lap he read an old book that had come down to him…

Ever noticed that when people walk into their quarters on the Enterprise (ST:NG) they first thing they usually say is "Computer: lights". Why are they off in the first place? Does it matter at all if they just leave them on all the time (except to…