Only the Raists' of the world. They say clueless things like Every new fossil discovered strengthens the theory. Every new bit of DNA sequence strenghtens the theory. Again you have absolutely no idea what you're talking about.
Uhm, we (me and Raist) both are of the same mind. When we find something out, and we are wrong about a previous assumption - we see if the ToE is compatible with the new assumption - it always is, and usually, it STRENGTHENS the ToE! The ToE existed before we knew about DNA, and microbiology - when we obtained that knowledge, the ToE changed - but for the better.
DNA is THE basis of life as we now it currently. Non-life to life means having transferable "instructions" (DNA) on how to produce life. No DNA, no instructions on how to make living organisms. The organisms that use silicon might be a fun project, but does nothing to explain how current life came to be.
Short of a time machine, we'll never be able to know with the level of certainty you want. We can use experiments to make observations, and we can use these observations to make 'guesses' as to how the process would work. If these guesses hold up to scrutiny and testing, we say "Well, looks like this is how it happened - it makes sense". Now, we don't say "THAT'S IT, WE FOUND THE ANSWER, LETS STOP DIGGING ANYMORE" - it's not how it works.
Your request for how WE, as in the organisms alive on this planet, came to be is a hard one to fullfill, because I have a feeling that even if we get a reaallllly good idea and have a lot of evidence to back it up, short of a youtube clip from 6billion years ago, nothing is going to convince you.
Fine, we'll leave it at that. Always expect someone to ask what DO you believe then, and ask you to back up your faith.
What's it with you and this word faith? Are you embarrassed to have faith or something? It feels like you don't like the idea of being the -only- irrational one. Here if it makes you feel better, I think that when every girl I've slept with tells me I am the best they've ever had, they're being 100% truthful.
Now we're both irrational - can you please stop throwing around the word faith?