Some stray observations.
"More is Different" is also the slogan of the Nanyang Technological University annual conference on complexity. There are some phenomenal presentations there, many on YouTube.
Related to the issue of emergent phenomena is:
Polanyi, Michael. "Life transcending physics and chemistry." Chemical & Engineering News 45.35 (1967): 54.
Seeing how something can be based on the rules of something else, but have novel emergent behaviour, opens up a whole new ways of thinking about phenomena.
Aside: Not quite sure why the random ohio state pdf got the link... then went to the original and realized it's _still_ behind a paywall at Science. There is NO good reason to keep it locked up.