"Wow. Okay. I suppose that if I say 'what, really, why' the answer will be 'for reasons you need an entire DPhil to understand'? - er, that's a roughly decade-sized academic qualification in my culture - "
(Which of course means he has several, but his first three runs through modern academia were Greek literature, astrophysics, and architecture, followed by his current stint in the history department, and he was planning to do economics next, having been having a surprising amount of fun doing finance since the advent of computers. Instead he's now kind of tempted, following Professor Rob's untimely and presumably lethal disappearance, to pick something that will make him less embarrassingly unqualified to share any of the wealth of modern technology in case this ever comes up again. The powered loom is a glory of human achievement and he absolutely does not even a little bit know how to build one.)
" - but sound so intense it liquefies the bones?" Do not say 'what's that feel like', absolutely do not say 'can I try'. "And this is just naturally somehow more straightforward using your magic than - well, okay, now that I'm saying it out loud I do see how it is inherently less complicated to make a man into a puddle than into a frog. Puddle's higher entropy, yeah?"