The document discusses desire paths, which are informal trails created by pedestrians taking shortcuts across grassy areas. It notes that obstacles like walls are put up to prevent people from taking these desire paths, but these obstacles can be "hacked" or worked around. The document also briefly mentions coders knowing things about reality that lawyers may not like to think about, and that information should be shared freely under creative commons licenses to allow for progress through "forking" or branching off from the original information.