Did you try to figure out how the magic crystals in Star Trek known as "dilithium," made a star ship travel FTL - oh and sometimes they could be recharged even with the radiation from nuclear aircraft carriers?
How "dragon string," can make a magic wand more powerful
Nope! Because 1) no one specifically said "we promise that it will all make sense" or "we asked scientists and they said it was all totally possible, so don't worry guy" and 2) none of those things are the core essence of the show
nor do they even pretend that they're based on real world science.
This show has had people say that (albeit paraphrased cause I can't be arsed to look up the exact quotes) and it is a core essence of a show trying desperately to ground itself on real world science.