Except that you have these things in the wrong order, and that is very important. People didn't hear a noise and call it The Big Bang. People looked at the universe and said, "it looks like it exploded from something. Is there any evidence of a great big explosion?" And then later they found the evidence that supported their theory when they heard the noise of the Big Bang.
And no, presuppositions are not how science works. You start with a hypothesis: "Is this true?". Sometimes you find evidence, sometimes you don't. The Big Bang started as a hypothesis that no one assumed was true, in fact it started out as "fringe" science when it was first conceived. Only after finding a lot of evidence do people believe it to be true because there is evidence that is objective (everyone can look into it for themselves).
This bit is way off track though. Make sure you notice my other post that is a direct response to the OP.
But you did live your life for special reasons! Isn't giving to the poor something special? Isn't helping the sick special? Isn't being a comfort for other people special? These things are only special because God tells you to do them? Then that means you only do them because God tells you to. And then your motivations for doing them make your sense of morality about them suspect.
On the other hand, if you do them because they are good, and the Bible showed you what is good, but later you find that God is not real, then you can still feel good that your life had purpose, just that purpose wasn't designed by a god. It was you creating a purpose for yourself and ascribing it to a god.
Ok, I see you don't like the word speculative. Is it better if I say uncertain? Interpreting evidence does not make evidence, that's what I meant.
Seeing the sun is up and stating it is different than seeing a shadow and saying "the sun is up". Other factors might have caused this, that's what I'm saying. The predictions could also be true for others reasons, hypothetically speaking. In any case, I am not knowledgeable enough in that field to talk more in depth about it.
Indeed, God says to do them because they're good. And what's more, he wants and prefers me to do it willingly, with pleasure. My God is so holy that he even cares about secret intentions. My God isn't just about a moral code of do's and don't's. He is about perfection and holiness in nature.
About and special and purpose, yes, I guess these moments, in our reality, are no less special or real or precious. Except no. You see, ever since this thought has found its way in my mind, I have been unable to appreciate these things or grant them meaning. If God didn't exist, then it would not matter. That's why I don't see how there can be oughts and values without him. Ultimately, it would be inconsequential. Your suffering, your happiness, what's the difference? Who, except you, trully cares? The universe doesn't care. Nature doesn't care. You're no one special. And, in fact, will you even care about yourself in 200 years from now?
On the other hand, if God does exist, then you're special (you are!). God cares about you and what you feel. That's why he took the incredible care of solving a problem you didn't know you had. Evil is in us, in our nature and that will bring us to our demise. It is now possible to access eternal life, true life, with God, by believing in Jesus. You know, the real point I want to bring, ultimately, is this one. That's the point of apologetics.
Evil is real and there's a way out of it.
That's why we need to investigate our beliefs, because they can be a stumbling block to the truth and the best good. That's why I wanted to discuss the implications of my and other's beliefs. We do need to make a choice at some point, when we know enough. I hope that to be the best.