If you haven’t read FLATLAND by Edwin Abbot, it’s worth a read, especially from a physics/philosophical (philosophysical?) perspective.  This is the sort of thing that I love to have float through my headmeat when I’ve got time to ponder it.  You start thinking about things like this that are just too big to hold onto, and soon enough you start feeling like you’re on the edge of some bigger truth, just past the horizon.

And when stuck in these moments, it makes me sad that there is no more Carl Sagan around, to put it into words that the rest of us can understand and appreciate:

[youtube=http://www.youtube.com/watch?v=Y9KT4M7kiSw]