here are a couple of interlocking potential causes: diminishing job security and social mobility for nearly half a century creating a general sense that ordina

here are a couple of interlocking potential causes: diminishing job security and social mobility for nearly half a century creating a general sense that ordinary peoples lives by and large are not getting better; political cultures isolating themselves in increasingly frantic and hyperbolic media bubbles, and escalating feedback loops of political signaling inside those groups; general distrust of social elites for failure to maintain or fix the system; elite overproduction incentivizing people who under different circumstances may have worked their way up traditional institutions to defect to alternatives and attack the old ones; proliferation of technologies of social influence and control. we're in for an interesting century for sure.