Bit depth is not a measure of quantity, but of dynamic range.  In other words, what matters is not only how many quantization steps you have, but how large of a space you are trying to map them over.<p>The examples in the article point to this obvious conclusion, but don&#x27;t quite state it explicitly.  The relationship between space and quantization effects is demonstrated for a physical dimension interpretation of space by the horizontal greyscale bar that stretches and contracts.<p>But what if you stretch and contract the dynamic range of your monitor itself?  Each bit in the encoding space (naively) offers a doubling of dynamic range in the natural space, so even your 30 bit encoding can be stretched if you display it on a monitor that intends to output a contrast ratio many times greater than what we are used to.<p>For instance, imagine a monitor that could output light perceptually as bright as the afternoon sun, next to effectively infinite blackness.  Will 30 bits be enough when &#x27;stretched&#x27; across these new posts of dynamic range, or will banding (quantization) still be visually evident when examining a narrow slice of the space?