There seems to be an underlying assumption that direct flights will be available to the meeting city from all the locations. This is not particularly realistic

There seems to be an underlying assumption that direct flights will be available to the meeting city from all the locations. This is not particularly realistic for long distance meetings, and for shorter distances, why not use rail? In my case, I used Shanghai, San Francisco, and Zurich. The suggested location was Fairbanks, AK, which for the Zurich & Shanghai based team members would mean a 24 hour, two stop flight. I think we'll pass. Adding London to the equation shifts the meeting point to… Tromsø, Norway, which demonstrates the absurdity of the geographical micro-optimization perfectly. Picking Stockholm or Oslo in the same neighborhood would have saved literally every participant a stop on their itinerary.