If God does not exist, life has no ultimate objective purpose value or meaning.

As I expressed in the comment section, I am finding it difficult to answer the question, but let me explain why, hopefully in the process of making a good argument. I am going to take the stance that there is a 'meaning' or 'purpose' of sorts, and this is precisely whatever you want it to be. I want to show that the statement you pose, does not make sense to say. "What is the meaning of the colour red?" I say; "don't be silly", you say back; "no, really, what is the meaning", I reply. Can you find a meaning to the colour red? I'm pretty sure you can't, and I'm pretty sure no one can. You want to argue that without god, life has no meaning. And while I agree that there is no overall purpose to life, that doesn't make your life not have meaning to YOU as an individual, as well as to those around you. I want to propose that there isn't meaning to life in the objective sense, since - to someone who doesn't believe in god, or without god - NOTHING has purpose, but there is meaning in that you make your own, and you make meaning to those you effect. Life, at least to an atheist, just as is the colour red, in the category of 'natural phenomenon', so it doesn't make sense to ascribe meaning to it. We can certainly postulate, and maybe potentially fully explain the origin of life; but if the concept of a god who created it all at some beginning is not compatible with your view, then the question is unanswerable in the terms you suggest. And I would like to point out that everything you said in point two is philosophically, logically, mathematically false. What you have said is equivalent to "If you somehow prove that our lives are devoid of meaning and purpose, that doesn't prove that our lives are devoid of meaning and purpose". Let me make this clearer maybe, you have proposed: god exists + proof that life has no meaning =/= (does not equal) god does not exist + proof that life has no meaning. What you should know, is that when you have proven something, it is PROVEN regardless of whether or not you prove something else. Now to my proposal, I certainly love my life, and although I don't agree with the terminology here, I can however say that you CAN have a purpose, by creating it for yourself. What would you like to do in life? Where would you like to go? What would you like to change? These questions, and their answers, can arise independently of a god, but could also provide your life with meaning if this is truly what you seek. The way I find 'meaning'? When I look out, and I see, the thousands upon thousands of visible stars, to think that there are trillions upon trillions more that I can't see, within billions upon billions of galaxies; to think that I exist here, and can consciously observe that fact, and comprehend it... fulfills my life every time. The more I can observe and comprehend, the more I can appreciate the universe in its whole, how simple rules result in complexities that on macroscopic scales are not comprehensible; it just makes me smile, it makes me very emotional. And even though I know that is not objective, that is what makes me continue to wish to live without a god, it always has.