There are always ingroups and outgroups. And the ingroup can't expand in an unbounded way if there's high mobility.
Also,marriage patterns are relevant here. Clannish behavior is most prevalent in high-cousin-marriage societies, and you have a more expanded circle of trust when the familial relatedness is more distributed.
High trust is quite unstable either way. You need something to connect you. It's far from automatic. We'll have to rediscover a lot of this stuff that was just thrown out with all the rational Homo oeconomicus theories about people being fungible cogs in a machine and that you can just shred communities and shuffle around the pieces in an atomized way and expect things to go on with trust as before, because this sort of stuff is less measurable.
There are always ingroups and outgroups. And the ingroup can't expand in an unbounded way if there's high mobility.
Also,marriage patterns are relevant here. Clannish behavior is most prevalent in high-cousin-marriage societies, and you have a more expanded circle of trust when the familial relatedness is more distributed.
High trust is quite unstable either way. You need something to connect you. It's far from automatic. We'll have to rediscover a lot of this stuff that was just thrown out with all the rational Homo oeconomicus theories about people being fungible cogs in a machine and that you can just shred communities and shuffle around the pieces in an atomized way and expect things to go on with trust as before, because this sort of stuff is less measurable.