Why? Can't they swim hundreds of miles within their enclosures, just as humans can walk hundreds of miles on the treadmill? Is the primary complaint that the or

Why? Can't they swim hundreds of miles within their enclosures, just as humans can walk hundreds of miles on the treadmill? Is the primary complaint that the orca won't be able to enjoy the scenery of the open ocean, and thus, will no longer find joy in its "migration"? This is the main reason some humans prefer to run outdoors instead of in the gym on the treadmill.