Imagine a ”smart” toothbrush. Through a bluetooth-enabled app on your phone, it is programmed to provide personalised feedback on your brushing habits based on time spent, pressure applied and area covered.

Now imagine worrying that adding more and more computing power to the toothbrush will create an all-powerful superbeing that erases mankind.

I get that vivid imaginations can end up there but that they are being taken so seriously, without any more coherent reasoning or explanation than ”it feels like it”, is truly baffling.