Life long learning: that's what I'm experiencing now. I have just bought a new notebook computer.
It's a macbook air and am now in the process of learning how to uses it. It's an entirely new world for me: being so used to microsoft and migrating to a mac is a big moment of discovery. Lucky for me, I have my niece, who is studying in the university and she has acquired a macbook air at a discounted student price. She is now teaching me on how to use this notebook.  Yes, how wonderful - a 17 year old girl teaching a 76 year old! It's great. One is never too old to learn.