Now isn't the time for me to be thinking of things like these. I should be concentrating on the homework i've laid out oh-so-neatly in front of me, i should be focusing on my Econs case study. I shouldn't let my mind wander off to some other place, something so unrelated to traffic congestions and taxes, subsidies and regulations. 

Half the fun is in the chase, the other half is knowing that you have what you want. After that, nothing else matters because you don't care to.