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I was reading over Deus on the Mirai Nikki wiki. I was reading the following
sentence [here](http://futurediary.wikia.com/wiki/Deus_Ex_Machina) but I do
not understand what it is meant by "cause and effect". Heres an extract of
that sentence:

> Deus Ex Machina is the God of Time and Space and a major character of Future
> Diary manga and anime...... Able to manipulate time, space, and the laws of
> **cause and effect** , Deus is the most powerful character in the series and
> acts as the judge of the survival game.

However I do not understand what the _laws_ of cause and effect are? What does
this mean? Does it mean that he can influence others destinys or lives? Change
the outcome?

What are the laws of cause and effect? I cannot remember them being mentioned
before. So to summarise I am asking....

  1. What **_is_** the laws of cause and effect. E.g. they are....
  2. What **_are_** they. E.g. One cannot do this.... you can do that....

Does anyone know?


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mirai-nikki
What is the laws of cause and effect in Mirai Nikki?


I think it's just refer to the general **Causality** concept.

From [Causality's Wiki page](http://en.wikipedia.org/wiki/Causality)

> Causality (also referred to as causation) is the relation between an event
> (the cause) and a second event (the effect), where the second event is
> understood as a consequence of the first.

There's also **Causation** [Wiki
page](http://en.wikipedia.org/wiki/Causation_%28disambiguation%29)

From [God and the Laws of Science: The Law of
Causality](http://www.apologeticspress.org/apcontent.aspx?category=12&article=3716)

>   * “the principle that nothing can happen without being caused”
> (“Causality,” 2009).
>   * “the principle that everything has a cause” (“Causality,” 2008).
>

and [The Principle of
Causality](https://www.marxists.org/reference/archive/spirkin/works/dialectical-
materialism/ch02-s06.html#AEN418)

> Nowhere in the world can there be any phenomena that do not give rise to
> certain consequences and have not been caused by other phenomena.

And according to the link you gave, even the room where Deus located is called
**Cathedral of Causality**

Hope those above answer the first question.

For the second question, I guess you refer to the content of the law? As far
as I know and understand, it's simply the same as its definition:

> “...nothing can happen without being caused” (“Causality,” 2009).

Hope this helps, and sorry if I'm out of topic or get your question wrongly.


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As I understand it, he made this statement to describe his creation of the
future diaries. That said, whatever the original laws of cause and effect
were, and whatever his alterations to the were, we know that the result is
that people are now able to know events that will take place in the future.

So at the very least, it can be concluded that the law of cause and effect
that was changed is the law that it is impossible for a person to know future
events, but the changing of this law has several loose ends that must be
addressed as well:

  1. Is the diary holder's mere knowledge of the event enough to alter the future? In the anime, the answer is no. A player must take action contrary or antithetical to the predicted event.

  2. Is a diary holder's propensity or volition to take actions contrary to a prediction enough to change it? This isn't made entirely clear in the anime, as sometimes a character's volition to take different actions changes the prediction, while other times it doesn't.

So the two above items most likely constitute the "changes to the laws of time
and space" that Deus made.


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