The number of atoms is finite but the number of states of those atoms is infinite. And the combinations of all those atoms in different states far exceeds the

The number of atoms is finite but the number of states of those atoms is infinite. And the combinations of all those atoms in different states far exceeds the number of atoms. What probably matters more than the number of atoms is the useful work that can employed in order to arrange those atoms in useful configurations. The upper limit of economic growth is probably limited by the amount of computation that can be done before the end of the universe.