Not only can they perform simultaneously around the globe, multiplying revenue streams, they will always be pitch perfect and look flawless.

In a dual-task paradigm, participants are given two tasks to perform simultaneously; a primary task and a secondary task.

Chanters may not perform an entire play, changing places with another chanter after an act or two or three, but they only very rarely perform simultaneously alongside another chanter.

Multiple quests can be performed simultaneously; some are interlocking, others unlock stages in fellow quests.

Loading and unloading operations can be performed simultaneously on four large deep-sea container ships, plus one smaller ship 500 ft (150m) in length.