Ummm... because I have a superior source for most any kind of information (have to ask though to avoid the last scene of the latest raider of the lost ark head blowing up thing, cuz knowing 'everything' is way too much to bear) and didn't ask if boron was a heavy metal--I took my sweetie's word for it which is unlikely to happen again.
And since I didn't die right after getting my degrees, I've kept learning new stuff?