A [[Point]] *halfway* between two other [[Point|points]]. Can also be thought of as the average of two points. $\huge\begin{align*} \let P &\in \R^{n}\\ \let Q &\in \R^{n}\\ {PQ}_{\text{midpoint}} &= \frac{1}{2}(P+Q) \\ &= \frac{1}{2}P + \frac{1}{2}Q \end{align*}$ *one of the very few times where it can make sense to add two points together*