👉 In physics, "superextremeness" refers to a phenomenon where an object's properties change significantly due to extreme conditions. This can occur when the object is subjected to extremely high temperatures or pressures, and its physical properties are affected by these conditions. For example, in a nuclear reactor, superextreme conditions such as neutron-rich materials that are not stable at room temperature can cause their properties to become extremely unusual, leading to changes in their behavior. This phenomenon is known as "supercriticality