Margaret Heffernan argues that, in the world of technology, there's nothing inevitable about the future.

"I'm not saying that automation isn't a big trend or that driverless cars aren't a possibility", she writes, "but there is nothing about them that is inevitable".

She believes all these assertions of inevitability have agendas. "If we let Silicon Valley hijack our future", she says, "we gain the comfort of certainty, but lose our freedom".

Producer: Adele Armstrong