Today is the first official vacation day for me, and never before have I felt such an urge to work! But wait a minute, isn’t vacation supposed to be about NOT working? Yes, but there is a difference between work and work. Running on and beyond the cognitive red-line for months on end has consequences and results in cognitive fatigue. No matter how much fun you have at the office. But this summer is unique. I just became a father for the second time and oh boy have I looked forward to all the “work” that follows. However, I would never call it work. Changing diapers on a screaming furious infant is relaxation. Pair it with a dog suffering from diarrhea during the worst thunderstorm I have experienced, and it is like a mental spa-treatment to me. I am now blessed with well-defined problems in abundance, something very different from the cognitively demanding role as an engineer.