The tart, tangy and sometimes sour taste of a citrus, something that can be categorized as simply an "acquired" taste; but also can be a good way to separate one's life into manageable time chunks, not unlike pieces of a grapefruit. Whether juiced, cubed, carbonated or peeled, a grapefruit is something more than just a natural hybrid, it's a symbol. It's a way to look back at memories, it's yet another segue into jumpstarting that nostalgia, whether that is healthy or not.