A message from our CEO about the future of Stack Overflow and Stack Exchange. Read now.

There is a sense in which it is countable. If I say Fire damage has made occupancy of the building impossible., that is NOT countable. However, if I describe the period during which one person occupies the building as an occupancy, and each subsequent instance an occupancy. Then each of those "occupancies" can be counted.

Only top voted, non community-wiki answers of a minimum length are eligible