How do you think the world will end?

how do you judge your predictions. i believe some nuclear war will be erupted in future that leaves many people's life shattered. as you can see the political powers being wrestled all over the world it only need a spark to turn everything into flame. not like old days where humanity was abundant and self respect was vital but nowadays people are more bound by laws and regs that not everyone knows about and which country don't own a nuclear resources?