That natural limit is way, way, beyond levels that cause catatrophic disturbances in economy[1], thus the distinction is irrelevant. [1] See your favourite man

That natural limit is way, way, beyond levels that cause catatrophic disturbances in economy[1], thus the distinction is irrelevant. [1] See your favourite mania, or even crisis of 2008 that can be argued to be because of failure of regulation to limit leverage of financial institutions.