Just to reiterate, Lucas LOVES her change. ;)
Also, the title is a reference to those usual "You have to believe me" scenarios where a guy makes a crazy claim looking and talking like a lunatic, offers no evidence and demands belief. AND to those scenarios where the other person doesn't believe stuff even with evidence. AND to those scenarios where "science won't help against magic but the guy thinks only science will". Basically I decided to try my hand at a more realistic interpretation regarding these tropes, with both sides being fairly rational about stuff. :)