Nero is an exception to the rule because she CHOSE to be a Saber servant. Nero is not renown for her swordsmanship, but rather her desire to do whatever the hell she wants.
Ugh, the dwarf planet debacle. Whatever, man. I know science is always ever-changing, as we get better technology and understanding of the universe, but there are some things you just don't mess with!
While wondering what the meaning of life is when in the whole scheme of things and the universe, it is a tiny speck on a mote of dust and water, be glad that you have the ability to be alive in the first place. Life is a miracle of physics: atoms and molecules, things that are inorganic and...
The other 95% of understanding the universe is so intense, your mind will literally be blown! Seriously though, if you ever are able to get a wish-granting genie, FIRST wish for the ability to know everything BEFORE wishing to know everything.
Numbers are understandable, no matter the language. Unfortunately, how one uses those numbers with things that don't look at all like numbers is what makes people lose interest.
"He who has not sinned shall cast the first stone."
And he who has sinned shall receive them.
Also, the woman and child from the beginning of the story weren't real, at least at that time. They were only illusions made by the hero to determine if the village was the one he was searching for...