Day of Silence

A Day of Silence is a single day, once a month, in which many cities on Gaia - including Neo Edo - are affected by an unknown scientific phenomenon where all noises and sounds are physically prevented from being louder than 90 decibels. Days of Silence are known to be caused by advanced Descendant technology, but the actual mechanism is a closely-guarded secret of the Descendants. The reason for instituting such an extreme measure is due to mental health issues caused by constant exposure to visual and audio sensory information.