The Butterfly Effect.

A month ago I saw a film whose name was "The Butterfly Effect".
The title is a reference to the butterfly effect, which theorizes that a change in something seemingly innocuous, such as a flap of a butterfly's wings, may have unexpected larger consequences in the future, such as the path a hurricane will travel.

The "Butterfly Effect" is a metaphor that encapsulates the concept of sensitive dependence on initial conditions in chaos theory; namely that small differences in the initial condition of a dynamical system may produce large variations in the long term behavior of the system.
Although this may appear to be an esoteric and unusual behavior, it is exhibited by very simple systems: for example, a ball placed at the crest of a hill might roll into any of several valleys depending on slight differences in initial position.

It's very interesting for me this concept, because nowadays very few people think about consequences, and if we thought about things twice before doing them, maybe most of the times they didn't take place.

An amazing band rock named MUSE made a song "Butterflies and Hurricanes" referring to the abstract concept of The Butterfly Effect.
So, I leave in here the lyrics.

Change,
Everything you are
And everything you were
Your number has been called
Fights, battles have begun
Revenge will surely come
Your hard times are ahead

Best,
You've got to be the best
You've got to change the world
And you use this chance to be heard
Your time is now

Change,
Everything you are
And everything you were
Your number has been called
Fights and battles have begun
Revenge will surely come
Your hard times are ahead

Best,
You've got to be the best
You've got to change the world
And you use this chance to be heard
Your time is now

Don't,
Let yourself down
Don't let yourself go
Your last chance has arrived

Best,
You've got to be the best
You've got to change the world
And you use this chance to be heard
Your time is now.