Quantum physics is non-intuitive to our everyday existence.
DB is non-intuitive to our everyday R existence.
Both work in everyday existence. The computer, smart phone, and our DVD players, for example, are real-life applications/examples of quantum theory. The success stories here are real-life examples of applied DB principles.
Your mileage may vary.
Amongst my friends and those who know me well, I am (in)famous for strange discussions...
In the depths of winter, I finally learned that within me there lay an invincible summer. - Albert Camus
Uncertainty is the very condition which impels people to unfold their powers.-Eric Fromm