... Adding 1 millivolt of noise when making an analogue recording would not make all details below 1 millivolt in height inaudable, using a quantization level of 1 millivolt when making an undithered digital recording would.
The way digital audio quantization is covered in textbooks is flawed. A waveform derived from an undithered digital recording at 16 bits is treated as if were the same as an analogue signal with signal to noise ratio of 96 dB. This is actually wrong and leads to false conclusions.