Content-Type: text/shitpost

I noticed that my recent post about dividing cake had appeared on lobste.rs, a Reddit-like site that I usually find considerably less obnoxious than Reddit itself. Sometimes the folks there say interesting things, so I went to see, and this time I got what I deserved:

The whole premise of the question is wrong, the “problem” of cutting the square cake into 9 pieces each with equal cake and frosting (which is on the sides and top) has a trivial solution.

Grandma could cut her cake diagonally, making four equal triangles. Then each triangle is cut into three subtriangles […]

Gosh, I feel so stupid for missing this completely trivial solution.

Almost as stupid as if I had forgotten that 4 × 3 ≠ 9.