“This underlying quandary—attempting to define “thought”—is sometimes referred to as the hard problem, and the results of understanding it called strong AI. People engaged in commercial AI remain sceptical that it will be resolved any time soon, or that it is necessary or even desirable for practical benefits. There is no doubt that artificial intelligences are beginning to do very meaningful work, and that the speed of change of technology will continue to shunt things along, but full-blown sentience still seems very far-fetched.”