> Note that institutions are shorter lived than one might think. If you have become 25 this year, you'll have lived for more than 10% of the US's entire lifetime. 75, and you'll have lived for a third of its existence.

Note also that the US has one of the longest lived current governments in the world. There are plenty of countries that have been around longer, but most of them have forms of government that came into effect there later than when the US got its current form of government.

Survivorship bias

Survivorship bias is a type of logical error that can be made when making inferences from data that has been filtered.

I neither made nor implied any inferences, so it is hard to see how there can be survivorship bias.

Institutions may change their form, but not their purpose. For example, in USSR the judicial system was basically a tool to justify decisions of prosecutors and party leaders. Nowadays the judicial system of the Post-Soviet countries remains the same. It's a servant of the current political elite.

I don’t know if that’s a great example because that just seems like all judicial systems across all of human history. The protoconcept of judicial process probably arose from subsistence farmer communities needing a way to hypocritically expel or kill people who did not conform to religious decrees, but without losing any social status, and in fact gaining social status by association with the judicial system.

What we have today is a tiny, tiny, tiny modification of that, where our savanna-adapted meat brains put in accoutrements of due process and fair trials, but it’s all just for show so that political elites can say one thing (freedom, due process, fairness) but do another (court packing, systemic racism, regulatory capture, corporate shilling).

there is the icelandic althing which has been around since 930. but as per your point, no matter what, growth and change is necessary for the survival of an institution - especially one determined to last.