Wow! That *is* some nice writing! Introducting the term metric and providing some background on that, really helps to understand the expansion of space better. I want to memorize this statement:

Superluminal space expansion

Because it is the actual metric that defines distance itself that is changing, rather than objects moving apart within space, this expansion (and the resultant movement apart of objects) is not restricted by the speed of light upper bound that results from special relativity.