Ugh...reading this tells me that I've gotten something wrong with the semantics and definitions. :lol
Basically, it boils down to this: I'm no expert on any kind of science--bio, chem, physics, whatever--but it has always been my understanding that the one of the principles of any scientific theory is that something comes from something else. Buildings and machines are created by people; living organisms are created by other organisms in the long evolutionary chain; the cells from which life originates from come from chemicals are created out of the planet's own natural phenomena; planets and stars are created from clouds of gas and dirt; and the universe is created from...what? Nothing? That's where it loses me.
It always seem ludicrous to me that people who firmly believe that everything is created from something else, and yet when it comes the origin of everything (i.e. the universe), then those same people betray that principle and say the universe was created from nothing. Like I said, I'm probably using the wrong definition, so I don't know who fits into this category--atheists, scientists, whoever.
I'm not saying there's an invisible man living in the clouds who created the world in 7 days. Personally, I view God as more of an energy (like a kind of grand unified theory) than a deity, and that the universe was created from that energy (which, I think, is something a lot of scientists agree on? though they wouldn't call it "God"). But like I said, that's my own interpretation.
It just always seemed to me that the idea that everything in the universe is created from something, except the universe itself which is created from nothing, is ridiculous and intrinsically hypocritical. But as I said earlier, I might be wrong in categorizing that idea as part of atheism.
So whatever that idea would be called, that's why I find ridiculous. =P