Moduli of Curves IV: Getting classy

Young tableaux are to planes as labeled trees are to curves. Continuing from the previous post in this series, we introduce the Chow ring of $\overline{M}_{0,n}$ and some important classes. Recall that in the first post, we answered the question “How many cubic curves in $\mathbb{P}^3$ pass through $5$ general points and are tangent to a given general plane at each of two of the points?” The…