Re: Big Bang, evolution and creation...

Originally Posted by
SiriMurthy
Everything as we know of, space and time, started with Big Bang, then the universe expanded, cooled down, organized itself into galaxies, stars and planets and so on. Then it just so happened that the third planet from the Sun happened to have just the right ingredients and conditions for the life to begin, which is quite by accident. I mean, the chemistry was just right.
This isn't too bad of a summary. I might add that the "chemistry" need not be exactly right - ie., a fairly broad range of molecular mixes might all produce life. The key is enough molecular diversity. And what was once thought to be driven by complete accident (the right molecules coming together, etc.) now appears to be not so accidental - we're just beginning to find natural laws of self-organization, where pockets of molecular order naturally spring from molecular chaos, given enough molecular diversity.

Originally Posted by
SiriMurthy
Quickly they jumped on me asking who created the molecules, who created the strong, weak and other forces...
Well, the atoms and molecules derive directly from the big bang - after the initial bang. As for the forces and the big bang itself, to my knowledge science has no answer as to what touched it off. The big bang theory is built up from evidence that logically leads one to think that there must have been a big bang scenario. But the evidence only goes back so far. Where science has no evidence, science makes no claims.
I have no major problem if your friends want to believe based on sheer faith that some "god" lit the match, so to speak, that set off the big bang. But as SciFiChick said, they then have the problem of defining a god that could pull off such a feat. Some supreme intelligence, outside of space and time? Well, maybe, but the tooth fairy would be just as valid a speculation.
And after the big bang, I don't think godly or magical explanations are any longer needed. All indications are that natural processes can explain the subsequent evolution of the universe without recourse to metaphysical speculations.

Originally Posted by
SiriMurthy
I happen to mention that you cannot create something from nothing, to which their response was "then how BB occurred" - someone has to create the matter so that BB can occur. I did not know what to say to that.
Actually, matter/energy IS being "created" out of the void of empty space all the time. These are virtual particles that do exist - if only for extremely brief moments of time. But there are phenomena that can affect such particles during their brief existence, resulting in something lasting being "created" from nothing.

Originally Posted by
SiriMurthy
Also, it seemed to trouble them that man came from monkies/primates.
We didn't "come from" them; we have a common ancestor. I mean, come on, look at the fossil record, particularly that of the hominids. If your friends deny biological evolution, then they're simply burying their heads in the sand.

Originally Posted by
SiriMurthy
They argued that carbon dating can never be accurate beyond 5000 years. It didn't convince them when I mentioned that half-life of C14 by itself is 5730 years and dating technique using C14 is accurate upto about 70,000 years and there are other isotopes that can measure upto a few billion years into the past.
Well, carbon dating IS limited, so you just use a different element. Carbon dating is only one bullet in the radiometric dating aresenal. Look up "radiometric dating" on google. As you say, similar methods using other elements can go back billions of years and are very accurate.

Originally Posted by
SiriMurthy
Their parting shot was: if you take a wrist watch apart completely and put all these parts into a box and start shaking it. Eventually will you have a running watch?... Actually, I said that was an excellent example because the probability of a watch putting itself together is very very close to zero, just like the evolution of an intelligent life on a planet.
This is a very old argument at least as old as Rev. Wm. Paley in the early 1800s. Quoting from the TalkOrigins archive, "At basis, this argues that the complexity and good design seen in natural systems could only be attributed to a superlative designer. Centuries ago, David Hume argued that one can only separate designed from non-designed entities via experiential comparison and contrast. Hence, since we only have one universe, we have no point of reference to argue that the universe is designed (or not designed). More recently, Richard Dawkins has written an excellent summary of at least one way in which good design does not imply the existence and action of a designer."
HERE are some additional arguments against this old, flawed analogy argument.
And how do you know that the evolution of intelligent life is improbable? If someone said life is nearly inevitable given enough molecular diversity, could you prove him wrong? Check out Stuart Kauffman's At Home in the Universe.
Everyone is entitled to his own opinion, but not his own facts.