Even if we simple cease to be, if our energy defies what humans know of physics and it simply ceases, are you happy with that. To simply not be and never be again, if not, are you sure that this is what you want. I don't believe in some eternal hell so maybe a religious person can chime in. But beyond that if that was it, gone, nothing at all. Would you be comfortable with that? We have no guarantees , science gives us a lot but is it infalable