> A cloverleaf exchange is interesting. It's not something that just happens, and its shape is not random. A river is boring. Also full of insects that try to f

> A cloverleaf exchange is interesting. It's not something that just happens, and its shape is not random. A river is boring. Also full of insects that try to feast on your blood. The universe of knowledge one could obtain from studying the organisms and ecological connections in a healthy wetland ecosystem or the physics of stars and galaxies and supernovas and black holes and brown dwarfs is vaster by orders of magnitude than what could be won by marveling at highways and satellite trains.