I'll also ask you to consider, more generally in life (not necessarily dealing with computers) where you might need an "algorithmic" approach to selecting an item for whatever reason. For example, most people tend to use a LIFO approach to choosing which plate to use for dinner. We don't usually dig down to the bottom of the stack of plates; we normally grab the one from the top since it is easier to obtain. So, the last plate washed and dried and put into the cupboard is the first one actually used. The one on the bottom probably only sees duty when Aunt Martha and all your cousins come over for dinner. Cool Do you have an algorithm for choosing clothes to wear? (Like Sheldon Cooper of The Big Bang Theory, do you have a designated shirt for each day of the week? Laughing Where else in your daily life do you use some sort of selection algorithm to choose from among several options? This could get interesting!