Good point. People should fear death because there is no evidence of what happens after dying. People fear the unknown. But its a double edged sword. No one knows what happens after you die, so is it good or bad? That's my worry.
No I meant should. But it could be shouldn't. Its like having an opinion on something that isn't there. Are you scared of 'x'? Well..what is it? That's the question really.
You could easily tell when the world ends if you knew how it did.
So for an example: if you wanted to know how the world would end, you can calculate the time of it happening based on the answer of what the issue would be.
I would choose how the world would end. That way, I could calculate when it happens based on the way it would happen.