So help me, I've tried, but I just don't get it. I read my way carefully through this, and while I understood some of it there were significant portions that were clear as mud. Granted, I'm not the most intelligent person in the world. Granted, I'm a biologist rather than a physicist. But still. On the bright side, I can see a glimmer of greater understanding in my future as I certainly grasp more than I did before reading. And I suppose continued exposure to quantum physics via more pop-science may help it seem more familiar in the future, but parts of this were a little dense for me. I still don't really understand wtf spin is for... such knowledge has spun right out of my head, if it were ever actually implanted. And considering that Hawking gave me a light bulb moment in this book with his very clear explanation of the principle of uncertainty, it's a bit of a shame that I couldn't connect with him on some of the rest.