Most chemistry is like that though isn't it? Everything is flying around randomly but the electron density distributions mean some "bonds" have better probability of being broken and made during reactions.
A cell is similar (since it is 60% water), but with many other types of molecules as well.
But that is obviously a misconception. Vacuum is not attracting anything, it is the fast moving molecules around it that PUSH themselves into the vacuum if we make a whole in the container.
What makes it hard to visualize is that we don't see the fast-moving molecules ever, which are forcing themselves into the container through the pierced hole by the power of their own (tiny) momentum yet very fast speed. :-)
It is also counter-intuitive that tiny things could have fast speeds, perhaps because we think in terms of a person being able to walk much faster than say an ant.
Found out much later — tag so many amino acids, that it would stumble on ribosome. Genius.
When you see an animation of a cell, it's puzzling how the right molecule shows up in the right place. But in reality, a typical enzyme collides with something to react with 500,000 times per second just from random motion.
I wrote a blog post discussing this in more detail: http://www.righto.com/2011/07/cells-are-very-fast-and-crowde...