Hi all, I hope this isn't a stupid question, but I was wondering this. If the universe only consisted of two hydrogen atoms, and those atoms were billions of light years apart. Would their weight bend space enough for them to be attracted to each other? Or does their influence have a point where it no longer has an effect? If so, does this mean the universe isn't entirely frictionless? Or that there is (I suppose you'd call it) cushioning in the fabric of space? I know that gravity is very weak compared to other forces, but would this make a difference? I am nothing more than an layman enthusiast, but I'd be interested to hear about this works.