In my opinion, there is not one of us here who will live long enough to see the world "end" - assuming it is total destruction we are talking about.
However, if by "end" we are talking about the destruction of every living thing on the planet ,,,,,,,,,,,,
,,,,,,, all it takes is a raving, power crazy lunatic, with his finger on the red button!
Some might say we already have that type of person in our midst.
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Quiz author - Crossword author - Proud leader of 'Torrential Reign' - Terry Fords biggest fan - and part-time nice bloke