A really important point made here in the context of debating William Lane Craig:

"Additionally he has to posit that the most complex state of being possible, God, was uncaused whilst the simplest possible state, empty space, had to have been caused by god."
 This, as a wider point, is a really concise and acute way of putting across the idea that an eternally existing universe is no more, and even somewhat less, improbable than an eternally existing God. I like it.