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A common form of Asspull, a Deus Ex Machina is an outside force that solves a seemingly unsolvable problem in an extremely unlikely (and, usually, anticlimactic) way. If the secret documents are in Russian, one of the spies suddenly reveals that they learned the language. If the writers have just lost funding, a millionaire suddenly arrives, announces an interest in their movie, and offers all the finances they need to make it. If The Hero is dangling at the edge of a cliff with a villain stepping on his fingers, a flying robot suddenly appears to save him.

The term is Latin for god out of the machine, and has its origins in Greek theater. It refers to situations in which a crane (machine) was used to lower actors or statues playing a god or gods (deus) onto the stage to set things right. It has since come to be used as a general term for any event in which a seemingly fatal plot twist is resolved by an event never foreshadowed or set up.

There are four primary forms a Deus Ex Machina can take:

  1. Total Deus Ex Machina. A plot element that didn't previously exist and has no logical explanation behind it. Let's say the hero has been pummeled to an inch of his life and the villain has regained control of his gun. The hero then finds a magical remote control under a nearby couch that allows him to pause the scene, take the gun away, and shoot the villain.
  2. Illogical placement and timing Deus Ex Machina. When something is established and explained in the work, but its use in that situation is jarring and impossible to believe. Building from the example above, let's say that instead of a magical remote, the local militia bursts in and shoots the villain. Maybe it was established earlier that the militia protects the countryside, but for them to somehow divine that there is a fight going on at this isolated farm and to burst in just in time to save the day is a Deus Ex Machina.
  3. Cut and paste Deus Ex Machina. When Chekhovs Gun is quick-drawn, but it's done in a clumsy way that makes one realize that the author obviously just couldn't write them out of the situation with what they have, so they went back to some earlier point and put in one or two throwaway lines to set up a victory down the road. From the example above, perhaps the hero randomly decided to put a tiny pistol in one of his pockets and just happened to forget that he had it until now.
  4. Fridge Brilliance. When something seems to be a Deus Ex Machina, but really isn't. The writers were just a bit too clever for their own good. To build from the above, let's say that the hero intentionally rigged his gun to blow up should it ever be fired in some early scene and it both fits with his personality and seems like a logical thing he would do. It might seem like a cop-out at first, but one them remembers he's a Technical Pacifist that hates guns and never wants to fire one in his life in spite of his job. See also Chekhovs Gun.

The lines between Deus Ex Machina and other devices are thin and blurry. If the same villain was suddenly brained by sniper's shot without any plot connections it would likely be type 2: Big Bad is likely to have foes, but here's Contrived Coincidence. If this sniper turns out to be some long-forgotten Victim Of The Week or a relative, it's type 3. If one of hero's potential allies did refused to participate in action, but decided to act on his own and it's in character, it may be type 4. If villain was attacked by some enemies, so he lurked in his lair with tight security, but gone out of his way to punish hero and made a good target of himself by posturing and gloating in the open, it's not even Chekhovs Gun, just a death by carelessness.

Note that the Romans and Greeks used type 1 and 2. However, it was largely ironic, since most plays were put on and funded by royalty and it wasn't a good idea to lay a Downer Ending on your boss. So playwrights would basically imply the tragic ending they intended, and then pull them out at the last minute. Audiences mostly got it. However, today's writers are not afforded the luxury of such excuses and audiences now find it rather contrived. However, there are some modern instances where this application of the trope survives.

Much abused as a term for making ourselves gods by the application of technology, e.g. cyborgs; this isn't what it means at all!

The Reset Button often depends on Deus Ex Machina. See also Asspull and Diabolus Ex Machina. Particular types of deus ex machina include Coincidental Broadcast, You Didnt Ask, and often, Creek Moment.

Also, for those who have no idea how to say it: day-oos ex mock-in-uh.


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