Blast radius
A blast radius is an extremely dangerous brain explosion in the universal mind. These are volumes of noospace in which different laws of reality apply instead of the usual physical laws. While truly understanding the reasons for why blast radii occur requires advanced knowledge, it does not require advanced knowledge to be affected by a blast radius.
The first known blast radius was the tonal blast radius of the airhorn, widely recognized as a pre-Flagellian sacred symbol by the vexillians. The primordial bwehhhhh that gave rise to the universe.
List of blast radii: