That's not a valid answer. He was explaining that *ALL* space was expanding, but not matter, yet he can't reconcile his explanation with all matter being inside the space of a marble originally.
That's not a valid answer. He was explaining that *ALL* space was expanding, but not matter, yet he can't reconcile his explanation with all matter being inside the space of a marble originally.
You are having a hird time understanding the concepts being discussed here. Nothing wrong with that, but it's true. I reccommend reading some Steven Hawking material. (Breif Hostory of time is a good starter)
"That's not a valid answer."
Of course it is a valid answer. We do not know is always a valid answer. We may know at some point, but we do not know at this point.