In 2004, Roger Penrose published "The Road to Reality: A Complete Guide to the Laws of the Universe" which is 1100 pages long.
<a href="http://staff.washington.edu/freitz/penrose.pdf" rel="nofollow">http://staff.washington.edu/freitz/penrose.pdf</a><p>"One of my mother’s closest friends, when she was a young girl, was
among those who could not grasp fractions. This lady once told me so
herself after she had retired from a successful career as a ballet dancer. I
was still young, not yet fully launched in my activities as a mathematician,
but was recognized as someone who enjoyed working in that subject. ‘It’s
all that cancelling’, she said to me, ‘I could just never get the hang of
cancelling.’ She was an elegant and highly intelligent woman, and there is
no doubt in my mind that the mental qualities that are required in
comprehending the sophisticated choreography that is central to ballet
are in no way inferior to those which must be brought to bear on a
mathematical problem. So, grossly overestimating my expositional abilities, I attempted, as others had done before, to explain to her the simplicity and logical nature of the procedure of ‘cancelling’."