may 21st billions of years early. My thoughts?

           I think that they are correct about how long it'll be till the end of the world and that it'll be more than likely caused by the sun expanding. It will be billions of years before we should even consider the end of the world and why on earth would God pick ONE man, a man who is more than likely crazy, to tell him about the end of the world. What all this is, is an old man who wants to go off this planet remembered and is only causing mass panic and all kinds of trouble. According to scientific research the sun should not expand and explode for 5 billion years, my thoughts are that no one should worry about the end of the world till it happens then they can scream and try to run but will more than likely just run each other over.