Silicon Valley's actual trajectory increasingly resembles Philip K. Dick's paranoid, hallucinatory fiction rather than the optimistic space-age visions of Asimov and Clarke.

optimism Expecting things to go well: whether it is what gets things built, or a bias that forecasts keep paying for.

Silicon Valley The place as an idea: its appetite for disruption, its moonshots, and what it has given up on.

consciousness What it is for there to be something it is like to be a system, and whether that can be measured.