In the "real world", techically competent people understand decibels just fine. But this is not arcane knowledge only known by a priesthood. Since you are clea

In the "real world", techically competent people understand decibels just fine. But this is not arcane knowledge only known by a priesthood. Since you are clearly confused about what a decibel is and how and why it is used, you can read https://en.wikipedia.org/wiki/Decibel https://en.wikipedia.org/wiki/Decibel and all will be revealed.