"I don’t think so. I don’t have a proof. No one that I know has a proof or knows a definite
answer; probably you do but I don’t entertain fantasy"

IT is ok to replace god with big bang, it doesnt change the gist of the question. It is not fantasy,
it is an attempt to explain life. An attempt for those who are seeking for an answer. It is all
metaphysical but perhaps, we could find an answer. 

The way i see it you should say "YES, life ends." Because as per your belief, you become
nothingness and unconsciousness cannot account for consciousness. Once you die, everything dies.
Now this answer would also give a mystical nature to life, how could it end for you and continue
for the others?. This life is single, if it ends for one, it ends for all. Unless each individual
is part of a different life, then saying "Yes, it ends", contradicts the meaning of a single life
that we all share. But as we ourselves have seen people die and seen life continue, so the common
sense answer is "NO, life does not end." There is no scientific answer to this question, it is all
metaphysics.

Another way to look at life is like a never ending movie in a theatre. Just because you walk away,
it does not mean that the movie stops. It goes on. So the correct answer it seems is "NO". But it
could also be a "YES" and that everything ceases to exist (specific to your existence) once you
leave the theatre.

Thus, one cannot understand both answers from a Scientific perspective.  

DOES LIFE END AFTER YOU DIE?
 
YES-------->Actually, Atheists must say YES. This is the only logical answer to deny afterlife.
            As one is dead, everything is dead including life. Nothing exists anymore, including
            the life that you shared with other beings while you were alive.
 
NO--------->As life still continues and you are part of that same life, you will also continue to
            exist. You only cease to exist if life ceases. You may think why cannot i be dead and
            life continue?. This is not possible as unconsciousness cannot account for consciousness.
            If you are dead, everything is dead.