What is the difference between pareto optimal efficiency and inefficiency?

Pareto efficiency is said to occur when it is impossible to make one party better off without making someone worse off.

In other words, no new source of a particular resource is available and there is only what exists now so the only way for one party to get more is to take it from another party.

However, as that state has never existed and will never exist, Pareto Optimal Efficiency is an idealised model of a completely fictional situation and belongs with Absolute Zero and Pixies.

So the difference is that Pareto Efficiency doesn't exist but Pareto Inefficiency does.

While we continue to innovate, our resources expand. While our resources expand, we have no need to steal from others to make ourselves richer.

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