I feel it is the starting point for much thinking, rather than the end point, because of the choices made, but also because he could not realistically study every related issue with the same level of depth. And some do deserve to be studied in detail in the context of the historical perspective that Piketty provides.

Nothing wrong with being a foundation for further thoughts of course. Quite the contrary.

Earth provides enough to satisfy every man's need, but not every man's greed. Gandhi