<< I just frankly don't think it's possible for any organization that large to have any idea what 90% of their employees are even doing on any given day.

I think it is possible, but I am not sure there is any actual will for it on either side. Management doesn't want to know unless someone is breathing down their neck or they are the of micromanager variety. I certainly stopped just volunteering information. But I absolutely do think it is possible.