The apocalypse is the end of the world, especially the one foretold in the Book of Revelation.
The biblical apocalypse is a concept held by Christian fundamentalists. This version of the end times is foretold in the Book of Revelation, and predicts the final battle between God and the antichrist. Revelation says this present world will pass away and God will create a new heaven and a new earth, and this new heaven will last eternally.
The technological apocalypse is a thought which permeates many science fiction movies and novels, but it is realistically set forward by Slavoj Zizek. In this apocalypse, humans will meet their end when it becomes technologically possible to digitize the human brain-- to reduce the mind to a set of codes. Zizek says, "At this crucial moment, a human being will change its ontological status 'from hardware to software'"(1).
1. Zizek, Slavoj. "Thinking Backward". Paul's New Moment. John Milbank, Slavoj Zizek, and Creston Davis. MI: Brazos Press, 2010.
- A Brief History of the Apocalypse - lists many failed predictions of the end of the world.