Quantum Physics and the Favourite Story
I've been an avid reader since I was very, very young. Owing to the hundreds of books on my shelves (and my desk and my floor - I am not particularly organised), I don't really re-read books as much as I used to, but back when I was younger and didn't have the independence to buy every book I laid my eyes on, I would return over and over again to my favourite stories. Even though I knew the plot back to front and inside out, I still loved returning to it and discovering something new; I loved going on the emotional and intellectual journey I knew so well, and I loved deepening my understanding each time.
Ordinarily, when I already know something and the teacher goes over it in class I have trouble enjoying the lesson (I enjoy learning, I know, I'm sad) or even paying attention. With quantum physics, it's different: I know the limits of my own knowledge but I'm also excited to go over the same things I knew before, because, well...
Oh, and it also happens to be one of our best models of what we can observe and comes complete with mathematical explanations for why quantum weirdness doesn't show up on a macroscopic scale.
I love quantum physics because it explains the world we know on a grand scale. Maybe that sounds stupid considering that quantum physics generally works on a subatomic scale, but those subatomic particles and waves make up our macroscopic universe. The way things come together on that level determines how the rest of the observable universe works - if it's even there at all.