" Let’s just say it’s magic.”
“Let’s just say that I need a little more explanation than that if I’m going to go along with this.”
John sighed.
“Okay, have you heard of nanotechnology?”
“Yeah. Microscopic robots, right?”
“Right, and imagine they can make millions of these robots and embed them in a liquid, so that you now have a liquid infused with the power of all these machines. Got it?”
“All right.”
“Now imagine if, instead of tiny robots, it’s magic. "

― David Wong , This Book Is Full of Spiders (John Dies at the End, #2)