Except if this creamy layer is a minority, society at large will still be trying to push them down. I think it’s important to have some cream to resist this and provide counter examples.

But this does nothing for the 90% suffocating below the algal layer. They will always be stuck there, because the algae use up all the oxygen.

> But then you end up with a "creamy layer" that always stays at the top.

But not the same “cream” - that’s what the current cream is trying to preserve