> Depends on what you consider a city. Ants, bees, termites, naked mole rats all live in densely populated 'buildings', with specialized division of labor between their inhabitants. Also, bat, bird or seal colonies can get incredibly dense.
I think that there is no better way to learn interesting facts than to make confident assertions on the Internet. :-)
Proselytizing causes learning because it creates doubt in others (that will then build arguments to refute the assertions) and in the self (through doxastic aporia).
But the current mainstream thinking of relativism, where values are inverted, also thinks learning is bad (which is why we don't do it in schools and universities anymore), and so earnest discussions are discouraged and deemed offensive (but 5 minute shout matches on the news are still fair game).
I was agreeing with you and saying I also do that (make confident assertions to spur a conversation while being fully open to the possibility I'm wrong, because it seems to be a more efficient route than everyone doing infinite research before saying anything).
I think that there is no better way to learn interesting facts than to make confident assertions on the Internet. :-)