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Posted by daniel on August 20, 2003 at 7:57 AM PDT

Whether it be offshore development, power grids, or cattle, what types of fences should we build?

Philip Brittan's blog entry Blackout comments on the fact that "21 major power plants spread out over 9,000 square miles all shut down within 3 minutes of each other, as a defensive response to some type of surge in the grid, leaving roughly 50 million people without power." In many areas that avoided the blackout, some person or system noticed the surge and separated from the grid in order to continue to deliver power to their local customers. Philip raises the distinction of fencing out to protect distributed systems as opposed to fencing in.

In my home state of Montana, the law of the land is "fence out". That means that it is incumbent upon any ranch to keep his neighbors