Undefined things have always fasinated us at the same time terrorized us - the future is always undefined, our far distant past similarily seem covered by a mist of mystery, our feelings are sometimes not categorizable and that alone makes us uncertain. We encounter an old inertia.
Societies move to the goading of ancient, reactive impulses.
They demand permanence. Any attempt to display the universe of impermanence arouses rejection patterns, fear, anger, and despair. We can not be this obtuse.