The Pizzapalooza Philosophy of Life

You are at a pizzeria. The pizza is cut into 8 slices. 5 of them are consumed by your friends. 3 of them remain, but not for long. You ponder the existential crisis of the leftover slices, and the meaning of life in a world where pizza is the ultimate truth.
What is the Last Slice? Should I Pick Up Another Slice? What Do We Talk About When We Talk About the Last Pizza Piecelast Night's Sessions?