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A deus ex machina from Latin, meaning "god from the machine"; is a plot device whereby a seemingly unsolvable problem is suddenly and abruptly resolved by the contrived and unexpected intervention of some new event, character, ability, or object. Depending on how it is done, it can be intended to move the story forward when the writer has "painted themself into a corner" and sees no other way out, to surprise the audience, to bring a happy ending into the tale, or as a comedic device.