Everyone knows that arithmetic is true: 2 + 2 = 4. But surprisingly, we don’t know why it’s true.. By stepping outside the box of our usual way of thinking about numbers, my colleagues and I ...

Coa's family said in a statement to the BBC that they would "never be the same." "We were blessed to have Kaliyah, even if it was for such a short time," they said. "She will be missed so much.