Boss
Take a Memo:
An atheist rejects god, they don't reject the multitude of other possibilities that you and I agreed may exist......so saying they 'assume something comes from nothing' would require a direct quote from an atheist saying that.......not just merely presuming its what they believe.
Silly boob posted an article about it once. So yeah, many Atheists DO believe that and argue vociferously for it. Hollie is on record as saying she "doesn't know" but assumes there is a "natural scientific explanation" which she has never presented here. I'm always interested in hearing about any possibilities you come up with, so give it your best shot... let's hear about them!
From MY perspective, I adhere to Occam's Razor, the simplest explanation is most likely. To me, the simplest explanation is, the Spiritual Energy we are aware of as humans intrinsically, is what caused/created the physical universe and everything in it. I can't PROVE that, but it's what I believe. Could there be another possibility? Sure... I don't rule it out, but I consider it unlikely.