I'm on page 109, and I think that's where I'll stop. It's not that I haven't enjoyed it, I have. In fact it's quite soothing to try to see how many layers of abstraction you can hold in your mind at once. However, I only seem to be able to read 2-5 pages at a time before the soothingness of it puts me to sleep, and my mind really is somewhat math resistant. I've gotten to a point in the book where the equations are just meaningless to me. One of my best friends loved this book intensely, and actually kept a note pad at hand so she could work out the math problems for herself, so she could follow more closely. Maybe that would have helped me, but I didn't want to! So, Dan Newton, I'll be handing this off to you!