Magic of the world

"Sorry, but I'm not sure if I understand this properly," Mia muttered, lowering her eyes and then raising her head to her chin as she took her sweet time to process everything that I said. "So all you wanted to say was that this Musk guy managed to achieve something that should be impossible, right?" 

'Clever girl,' I thought, as always impressed by how quickly Mia could catch on to the things that she wasn't predisposed to understand. 

Even if I was the best in the world at explaining knowledge, even if I actually had any background preparing me for such a task... Helping Mia understand the scale of things space-related should still be a massive challenge. 

Not at all because Mia was lacking in intelligence or wits. It was all because this reality was so mind-boggling that even those who grew up knowing those scales by their heart hardly ever could understand what it truly meant.