In a confederal system, the central government has no ability to make laws directly applicable to member states unless the members explicitly support such laws.
“Life is not an easy matter... unless, you have before you a great idea which raises you above personal misery, above weakness, above all kinds of perfidy and baseness.”
Surgery is used to detach conjoined twins into separate functional bodies unless a shared vital organ such as the brain, heart or liver makes it too difficult.