This is an interesting exercise, but for absolute longevity it's probably easier to attempt to design an organisation that will continuously rebuild over 1'000

This is an interesting exercise, but for absolute longevity it's probably easier to attempt to design an organisation that will continuously rebuild over 1'000 years. A while back we visited a site that has been in the hands of the same organisation for the last 1'500 years. The most recent buildings are only from the 1600s but the oldest structure found there had been dedicated to Mercury ca. 2'000 years ago.