pensions and natality

[Odile Bénassy]

Francois-Rene Rideau wrote:

> Consider the sum of available riches (specifically NOT any kind money,
> unless it be considered by its sole intrinsic value; rather, consider
> food, clothes, tools, furniture, buildings, factories, infrastructure, etc)
> in a country, and its evolution over time.

What is "riches" ?
Are disease, bad time, pollution,... to be counted in negative,
substracted riches sum ?
If so, the axiom below will have a more conceptual meaning, because you
could doubt of its rightness, depending on which country you consider.
> 
> First proposition: there can only be life and civilization if the sum of
> available riches is positive. Take it as an axiom, if needed.
> ...

-- 
Odile Bénassy,
fonctionnaire, Orléans, France
"obenassy@magic.fr"
"http://perso.magic.fr/obenassy"