Martin Rees: Machines will Inherit the Future

Southern Nights

Martin Rees: How soon will robots take over the world?

Let me briefly deploy an astronomical perspective and speculate about the really far future – the post-human era. There are chemical and metabolic limits to the size and processing power of organic brains. Maybe humans are close to these limits already. But there are no such constraints on silicon-based computers (still less, perhaps, quantum computers): for these, the potential for further development could be as dramatic as the evolution from monocellular organisms to humans. So, by any definition of “thinking”, the amount and intensity that’s done by organic human-type brains will, in the far future, be utterly swamped by the cerebrations of AI. Moreover, the Earth’s biosphere in which organic life has symbiotically evolved is not a constraint for advanced AI. Indeed, it is far from optimal – interplanetary and interstellar space will be the preferred arena where robotic fabricators…

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