How will the world end?

i guess some one would have said this already but if u want to be prepared watch this movie, https://www.imdb.com/title/tt0387808/

also if we dont die fast of an epedemic or something wof that kind we will get an war that would kill maybe a lot of us but we wont die we will restart and in

some 100 years we will be back @ this lvl of overpopullation :S ,