Back when the life expectancy at birth was forty you mean? And the system has expanded greatly since then. Handouts for almost everyone except normal workers who pay the highest taxes on labour in the world after Belgium. And yes the system has stopped working now the population has stopped growing. Germany as an antiquated boomerocracy is unrivalled as far as I am aware.

Life expectancy at birth is irrelevant, people who die in infancy don't consume many resources at all. What matters is the percentage of the population that's of working age, and here Germany is fairly typical for a developed country.

It matters in combination with the tax rate on the working population. There are huge transfers of wealth ongoing from the working class to the retired class of people, who are the richest generation in history. People need to wake up and protect their class interests an stop arguing for this German Ponzi scheme.