I am sorry, but I am sick to death of all the "THIS CAN'T HAPPEN UNLESS GOD DOES IT" arguments. I am also sick of those agnostic arguments that say "You can't use the scientific method to prove or disprove god"
No knowledge is unknowable until we've failed to learn it. We'll only fail to learn it once we no longer exist. I'm sure that given enough time, science WILL answer that question.
Now about the "It can't happen unless god did it", do you truly understand the process well enough to say that? Evolution is a hotchpotch of logic. It all makes sense. That's how we can determine god is not necessary. Evolution is a gradual process that happens over A LOT OF TIME. Here's how it works in the micro scale.
Two parents survived in the world long enough to have children. Their children will inherit their modified DNA that will allow the baby to survive better in the new environment than, say, his grandparents. From whom the parents took DNA.
This process repeats itself. The DNA is constantly changing. It changes throughout your lives. Slowly adapting.
On the macro scale, if this is repeated enough, you have evolution. Monkeys turning into humans and et cetera.
We've found transitional fossils. We've answered the chicken and the egg argument. (The egg came first. What was one evolutionary step away from a chicken laid an egg that then became the first chicken. It really depends at which point it starts being a chicken and not whatever it was before.) Usually the transitional fossils are VERY similar. They can be classed as the same thing. But eventually, the difference gets distinct enough.
Look at stone age human fossils. They have DIFFERENT BODIES! That's EVIDENCE of evolution. We KNOW they are humans. We must assume they are our ancestors.
Evolution doesn't happen overnight. It happens over MILLIONS OF YEARS. Scientists estimate that it took 5.5 million years for humans to evolve from single cell organisms. (I'm talking from memory here. Someone verify this.)
Now how do we know god didn't do it? Because it's not as "perfect" as you'd like to assume. It's not intelligent design. It was not designed. It was made on the fly. Small modifications every generation to what's relevant to the generation that gave birth.
Single celled organisms evolve even faster. We OBSERVED evolution in them in the sense that some bacteria grew immune to certain drugs. Those that developed resistance survived and multiplied. Those that didn't, died off. Survival of the fittest.
"It is not the strongest which survive, but those that are most adaptable to change." -Charles Darwin (At least I think he said that... Somebody else maybe.)
Take note. This is not evidence that says god doesn't exist. It just proves to some extent that evolution can happen without god. You could twist it to semantics and say that god created it this way, but that's semantics. That's a whole nother topic.
I firmly believe that if a god exists, he is not omnipotent. (Also not omniscient. Which makes him fallible.) He is probably not very benevolent either. But true to the day of me posting this, I do not believe that god, as defined by religion, exists.
In fact, by the definition of existence, almost all religions would agree that god/s doesn't/don't exist.
To exist, you must be made of SOMETHING. Energy or matter. Period. Souls do not exist, heaven does not exist, hell does not exist, darkness does not exist, et cetera.
Then we must not forget Occam's razor which many people get BLATANTLY wrong. It does not say go with the simplest hypothesis/theory! It says go with the one that requires the least assumptions! The one that requires the least research! The one that has more proven facts around it! That is why CERN are searching for the Higgs boson. Because the Standard Model is supported by Occam's razor in the sense that the Higgs boson is one of the last things left to iron out about it. Should it be proven false, we'll go to the next theory.
But I'm just ranting now.
It REALLY depends what we can call a god. God doesn't have to be omniscient, omnipotent and benevolent. Many religions don't have typical Abraham gods. (Omnipotent, omniscient, benevolent, et cetera.)
Then you must take into account that even though science did not prove or disprove the possibility of god, neither has religion.
Stuff which you cannot explain, or science cannot explain, are not necessarily acts of a divine being.
One last thing. All religious books, including the Bible, Qur'an, New testament, et cetera, were written by HUMANS. Fallible, unintelligent, uneducated, primitive, unscientific, HUMANS. HUMANS! Not god, HUMANS!
We all know how humans see what they want to see, hear what they want to hear, et cetera. Take the UFO argument. You know who doesn't see UFOs? Astronomers. People who KNOW WHAT THEY ARE SEEING! You know who doesn't see god? Men and women of science.
I'm feeling like I'm being really offensive here. I'd just like to say, I'm not trying to be offensive. I'm just sick and tired of people attributing things to gods because they lack other evidence. I am sick of people going all Aristotle on science. I am sick of Agnostics who constantly belittle science and claim that there's unknowable knowledge out there. Knowledge that is impossible to know.
You know what used to be unknowable knowledge 50 years ago? A WHOLE FUCKING LOT THAT WE DO KNOW NOW!
Don't forget that if you go back in time to ANY time period before the 20th century and show them a pocket calculator, they would burn you at the stake. Claiming you're a witch.
Yes. We used to think a lot of stuff is impossible. Notice how science fiction is quickly becoming science fact? Force fields, plasma, ions, quantum theory, laser weaponry, flying cars, cold fusion, regular fusion even, space travel,powered flight, education, industry, democracy, I can keep going with this. ALL of these were once considered unknowable AND impossible. I don't mean just "hard" impossible, I mean IMPOSSIBLE impossible.