Random Fermi Paradox solution of the day:

Nobody goes into space and colonizes the galaxy because only Moon Nazis want to do that, and after experiencing a few dozen genocides all sapient species learn the safest thing to do when you see a Moon Nazi is to murder them immediately, it's the only way to avoid the genocides.

@cstross Okay - what about a group that takes as given that neither they nor their descendants will be alive aim to establish a foundation/group/club/whatever that can wants to *eventually* build an ark to reach Proxima Centauri at it's closest approach in about 26,000 years.

The ideals, goals, ambition, institutional methods established by the "tree planting" generations just pitching designs and funding research, etc.

Presumably non-nazis.

Basically Long Now foundation + Centauri Dreams.

@stevenaleach You're describing a goal we only have—at best—two social structures capable of achieving: a religion, or a royal family. Both of these have undesirable failure modes. (Most human social structures disintegrate or lose track of their purpose over roughly the same duration as a human life expectancy.)

@cstross @stevenaleach
Universities hang around. Building a department which can sustain an area of study through many generations of graduate students, PhDs and professorships wouldn't be trivial.

#Anathem doesn't seem ridiculous on that.

The Long Range Foundation is even better named for this than the Long Now, albeit the latter is real.

@Photo55 @cstross @stevenaleach Even if we count from the Great Schism, the Papacy is a longer-lasting institution than any university, I think?

The Nine Houses made it to ten thousand years but it probably helps if God's still around and can send you a note if you're doing it wrong. :-)

@denisbloodnok

Well, currently the Curia etc is an example of religious nature*, but perhaps not quite so continuous as people regard it, nor so devoted to a single aim, other than power, as might be needed to move anything between stars.

But yes, an old institution.

* I.E. one of the two structural approaches given above as persisting for long periods.
Vid Sup.

@Photo55 Mmm, I'm just trying to think of anything older (and at least arguably seeking a similar goal to when it started).