Reminds me of a joke I heard recently. A chemist, a physicist and an economist were stranded on a desert island when they discover a crate of canned food. The

Reminds me of a joke I heard recently. A chemist, a physicist and an economist were stranded on a desert island when they discover a crate of canned food. The chemist says that they should leave the cans in the salt water for a while and then try opening them. The physicist says they should try banging them open with rocks. The economist says "Let's assume we have a can opener."