I'm stunned by this

There’s no such thing as brontosauruses (brontosauri)? What?

School, they kept doing this to me. They teach you one thing in Algerbra, tell you to forget it and it’s really this in Geometry, then in Algerbra II, forget all that other silly stuff and now it’s this. And let’s just not talk about Pre-calc. Not that I’m bitter about that.