[Home](https://charlespetrie.com/) / Ideas # Five ideas, in his words and ours. Short essays on the threads that run through the work: keeping the reasons, coordinating people through their tools, putting a magazine online, a Coordinated Internet, and an airport run on dependencies. - ### Proteus, truth maintenance and Redux How to change your mind without starting over. - ### Agents, ProcessLink and virtual enterprises Software that coordinates the people who design things. - ### IEEE Internet Computing, and why it was online first A founding editor's argument with the paywall. - ### Emergent collectives and the Coordinated Internet The future of the Internet is coordination. - ### 88NV: an airport as a coordination problem Three hundred volunteers, one runway, every plane documented. --- An independent fan and tribute site celebrating the work of Charles Petrie. Not affiliated with, endorsed by, or the official site of Dr. Petrie, Stanford University, the IEEE, or Burning Man Project. His own pages remain at www-cdr.stanford.edu/~petrie.