That's a bean pod, not a bean. Gee. You're really going to argue that a bean is flat? Technically, even a pod isn't flat -- not like a sheet of paper is flat. And the very term "flat" is inconsistent with galaxies anyway. They're not flat.
Maybe in a happy turn of coincidences string theory and green bean theory become one and is called string bean theory.
Beans are dry, yet moist, and that is why I love them. Serve me up a big plate of hot buttered lima beans and I am a happy man. And herein lies the secret of the cosmos: dry, yet moist.
Wisdom thwarted by researching beans. But I won't go there. But I've learned something and I was right.