A wise old saying says that the older we get, the less we know. And it is true. When I was eighteen, I was sure I knew everything. Now I am certain about very little. I know what I don't know and that is a lot. I know that computers run on codes and programs. However, I still not know how my thoughts get to my fingers to type this blog, how I press a key and magically the words appear on screen. I know my car starts with its key fob- but how does a little piece of plastic in my pocket tell my car's ignition to start. I know how to dial out on my phone but how does my little movements on a thin piece of glass allow me to talk to my friend in Sydney. If ignorance is bliss, then I must be getting happier all the time.