Quote Originally Posted by Sturgeon's Lawyer View Post
There was no vacuum in the instants after the Big Bang; no matter as such either. All was highly compressed energy. Can sound propagate in pure energy? Yes: energy vibrates. But the "volume" of energy is equivalent to temperature. That initial bang is still echoing across the universe ever more faintly (that is, at ever lower temperatures: it's currently about 2.75 Kelvin), and shall do so till the Heat Death or the Grand Gnab, whichever comes first.
That means that our whole solar system could be, like one tiny atom in the fingernail of some other giant being.