That wasn't part of the argument? Lack of writing made their administrative systems less effective than it could've been otherwise. However plenty of less organized or centralized empires and states survived for longer periods.
> then held onto it until
The Inca empire was established less than a hundred years before the Spanish conquest (it was preceded by a much smaller state centered around Cusco). That's not a very long period. Most of the expansion happened almost within the living memory of the people living there when Pizzaro arrived (in the midst of a major civil war and as far as we can tell it wasn't the first one).
So it's very hard to determine how stable the system was or how long it could have survived. It was remarkable what they achieved compare to pre-contact states (e.g. the Aztec empire was more or less a somewhat lose confederation) but it really didn't last enough to be comparable to most of the more centralized old world empires.
Also it's not necessarily clear how far the administrative system extended from the core areas and how strong it was in the more distant recently conquered territories.
That wasn't part of the argument? Lack of writing made their administrative systems less effective than it could've been otherwise. However plenty of less organized or centralized empires and states survived for longer periods.
> then held onto it until
The Inca empire was established less than a hundred years before the Spanish conquest (it was preceded by a much smaller state centered around Cusco). That's not a very long period. Most of the expansion happened almost within the living memory of the people living there when Pizzaro arrived (in the midst of a major civil war and as far as we can tell it wasn't the first one).
So it's very hard to determine how stable the system was or how long it could have survived. It was remarkable what they achieved compare to pre-contact states (e.g. the Aztec empire was more or less a somewhat lose confederation) but it really didn't last enough to be comparable to most of the more centralized old world empires.
Also it's not necessarily clear how far the administrative system extended from the core areas and how strong it was in the more distant recently conquered territories.