Olivia, I did read the book Flatland many years ago, and found it intriguing. Who knows how many dimensions actually exist? I'm sure our lack of understanding greatly exceeds our understanding of the
universe. But we are getting closer and closer to understanding how it all works. Science is bringing us closer. (Carl Sagan's explanation was popular science, not religion.)
I hate to keep beating a dead horse, but I'll say it one more time: religion insists that some ancient mystics, priests, theologians, etc. had access to some ultimate truth, which we are asked to believe on
"faith." Religion has no scientific proof at its disposal; it may sometimes agree with science, often not. It just requires faith in the "wisdom" of the ancients. In the examples given in this thread, it claims to know
the mind of God, whoever or whatever that deity is supposed to be.
Moses presented the wandering Jewish tribe with the Ten Commandments (which he obviously wrote and engraved in stone), and claimed that God had written them. His credulous followers, or some of them, anyway, actually believed him. They were probably too blown away by having narrowly escaped from slavery to engage in much logical analysis. The religionists among us are still peddling that same bill of goods.
No logical thinking, please, you've got to accept it on "faith," because I tell you it's true.
Science requires proof, and is constantly subject to examination and revision when necessary. Faith and belief don't enter into the picture, except for the belief that something has to be proven in the real,
physical world to be believed. As the Flatland video demonstrates, we are trapped in the three dimensions we live in (four if you count time as a dimension), and if other dimensions exist, we cannot even
imagine them. All we can say is, "What if...?" But the religionists can't imagine them either, and their autocratic insistence that THEY have the right answers (as opposed to all the other religions and science) goes against the grain of rational thinking.
Thanks for the video; it was nice to see good old Carl again.