i don't think that either of us knows enough about what Loki does to say that it's not science based. his adoptive mother was using similar tricks. it could be some kind of advanced verbal mathematics. the asgardians aren't immortals. they have eyes, hearts, lungs, etc. there are physical laws in their environment. and they've been shown to use technology similar to that used on Earth (or Jane at least thought so).
What in the **** is verbal mathematics?
no, because that would suggest that it's an earth-based science. electricity might act differently in Asgard or the other realms.