It depends on you definition of post-scarcity. If there is unlimited resources in the long term only (i.e. no possibility of complete consumption of a resource), then stratification must be possible as there will only be a finite amount available at the moment. Hell, you could make a good book out of a society where everyone has an unlimited amount of all but one resource, and that resource is what determines your social standing. But if everyone has an unlimited amount of everything then you could argue there is no stratification, at least based on material ownership. This would also mean that money doesn't exist, as there would be no reason for anyone to buy or sell anything because they already own everything. Likely in such a society stratification would be derived from a different source; perhaps a genetic trait (skin color, height, etc.), or status gained from lineage likely based from pre-scarcity status, or something more vague like "honor" accrued by a person's actions over their lifetime.

But post-scarcity will never exist. Not without a severe decline in human population coupled with no drop in worldwide production. There just aren't any resources with unlimited supply.

You can loosen the definition of a post-scarcity society to mean there exists enough of all resources for all people to survive in relative comfort, though the supply of these resources is not unlimited. If you look at it this way, clearly the U.S. (and likely the whole world) is a post-scarcity society. The amount of food, space, clothing, and all other resources is more than enough to provide for the 7 billion+ humans alive today. However this is not the reality, as many resources are used by people who don't need to use them and even more is wasted without being fully used.

It depends on your definition of post-scarcity. If there is unlimited resources in the long term only (i.e. no possibility of complete consumption of a resource), then stratification must be possible as there will only be a finite amount available at the moment. Hell, you could make a good book out of a society where everyone has an unlimited amount of all but one resource, and that resource is what determines your social standing. But if everyone has an unlimited amount of everything then you could argue there is no stratification, at least based on material ownership. This would also mean that money doesn't exist, as there would be no reason for anyone to buy or sell anything because they already own everything. Likely in such a society stratification would be derived from a different source; perhaps a genetic trait (skin color, height, etc.), or status gained from lineage likely based from pre-scarcity status, or something more vague like "honor" accrued by a person's actions over their lifetime.

But post-scarcity will never exist. Not without a severe decline in human population coupled with no drop in worldwide production. There just aren't any resources with unlimited supply.

You can loosen the definition of a post-scarcity society to mean there exists enough of all resources for all people to survive in relative comfort, though the supply of these resources is not unlimited. If you look at it this way, clearly the U.S. (and likely the whole world) is a post-scarcity society. The amount of food, space, clothing, and all other resources is more than enough to provide for the 7 billion+ humans alive today. However this is not the reality, as many resources are used by people who don't need to use them and even more is wasted without being fully used.