Shortness of life was a primary force in the permanence of institutions, strange though it is to say it. But it is so much easier to hold onto whatever short-term survival scheme you have, rather than risking it all on a new plan that might not work— no matter how destructive your short-term plan might be for the following generations. Let them deal with it, you know. And really, to give them their due, by the time people learned the system they were old and dying, and for the next generation it was all there, massive and entrenched and having to be learned all over again.

Kim Stanley Robinson