After seven centuries of existence and at least four centuries where few citizens existed without it, the datasphere - including the All Thing and all comm and access bands - simply ceased to be. Hundreds of thousands of citizens went insane at that moment - shocked into catatonia by the disappearance of senses which had become more important to them than sight or hearing. More hundreds of thousands of datumplane operators, including many of the so-called cyberpukes and system cowboys, were lost, their analog personas caught in the crash of the datasphere or their brains burned out by neural-shunt overload or an effect later known as zero-zero feedback.