How Silicon Valley Fuels an Informal Caste System Ifeadi C. 00:02 Feed: All Latest, Zero Tech Blog The on-demand economy gives fewer opportunities for people to interact with those outside their class—creating impermeable inequality. via Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsWe've Been Talking About Self-Driving Car Safety All Wrong'Fortnite' Scams Are Even Worse Than You ThoughtSan Francisco Tech Billionaires Go to War over HomelessnessCarbon Capture Is Messy and Fraught—But Might Be EssentialThe Science of the Sniff: Why Dogs Are Great Disease DetectorsThe Singular Joy of the Dumb, Fun Slasher-Movie Threequel, From 'Halloween III' to 'A Nightmare on Elm Street 3'