Why do atheists claim that the concept of God is so unlikely

[pocaracas]

Ahhh...a creationist... How unoriginal... -.-

"Ah... another proponent of the god-of-the-gaps theory."

Theists are not proponents of the "god-of-the-gaps" theory since the "gaps" you speak of are part of the atheist belief system.

There is so much wrong in that one sentence that I'd probably need a whole thread just to explain and you'd probably remain equally wrong...so why bother?

"if a god is Real, then that god is a part of Reality. If something is a part of Reality, then Science will, sooner or later, somehow, get to it."

Not according to US National Academy of Sciences: “Science can say nothing about the supernatural. Whether God exists or not is a question about which science is neutral.”

Well, guess what? I'm a non-US scientist, so I don't particularly care for what those people said about the subject. I'm sure there's some political agenda behind it, in order to keep the peace.

"Now, the tricky bit for you believers"

Actually, this question is far trickier for atheists.

Lol.

"The god concept appeared in the human mind thousands of years ago, when no science was really available."

The question here is, how did the concept of God "appear" in the human mind in the first place?

You say these ignorant things and then complain when people say you're ignorant, shouting "ad-hominem!".

I said "the god concept", not "the concept of God".
Notice the difference? No?
Perhaps the ad-hominem is justified, then...

"What is more likely, given what we can all observe nowadays: that the concept was invented by human imagination or that a god actually appeared and imparted the information onto mankind?"

The latter is more likely, given that such a complex, highly intelligent entity could not have been invented by the imagination of primitive, nomadic sheep-herders.

See what I mean?
I could say many things about your reasoning skills, but instead I'll just say: your "concept of God" is the result of an evolution of "the god concept".
And you'll never understand this.

As our scientific understanding has increased, we see now more than ever how accurate the Bible is when it touches on scientific matters. This is far beyond the abilities of the men who wrote it all those years ago.

Funny how the Muslims say the exact same thing about the Quran...

As an example, consider that the Bible demonstrated knowledge of microbiology thousands of years in advance of scientific discovery when it commanded the Israelites to bury their excrement in the ground. This was when when the most scientifically advanced civilization on earth at the time, the Egyptians, were rubbing faeces on open wounds to heal them.

Different practices in different parts of the world are nothing uncommon.
Some of us shit sitting on porcelain, some shit squatting to a hole, and some do it behind a tree.
You seem to be judging ancient civilizations from your own point of view... Not to mention that you may be misrepresenting some...