The points outside the production possibility curve shows the unattainable bundles.
Explanation:
A production possibility curve shows the maximum possible bundles of two goods that can be produced using the available resources and state of technology.
The points on the curve show the efficient utilization of resources. The points below the curve show all the bundles that are attainable but inefficient. At these points, all the resources are not being utilized efficiently.
The points above the curve show those bundles that are unattainable. These bundles need more resources to be produced.
