It definitely can feel a bit strained at times, but the basic metaphor of: - lenses “focus” on elements of a product type - prisms “split” a sum type so that

It definitely can feel a bit strained at times, but the basic metaphor of: - lenses “focus” on elements of a product type - prisms “split” a sum type so that optics can work over selected branches ...feels nice when you’ve been working with it for awhile.