For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some ‘organic element’ since I couldn’t accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.
Wow, a reply that goes above and beyond, have some Lemmy Silver 🥈
Ty it’s probably deeply and fundamentally wrong but my high school physics teacher isn’t here so…