The four truths of digital:
Truth One: DSD is really a 4-8 bit recording system, not 1. This means it gets decimated and oversampled - two things the scheme was trying to avoid in the first place.
Truth Two: Most 16-bit "audiophile" CDs contain 20-bit level resolution and have since 1993.
Truth Three: The limit of human hearing is 20-bit level resolution.
Truth Four: Digital is hundreds of times lower in distortion vs. analog. But its distortions are spread-out spectrally and are harder to pin down. They are removing these, at last, in the latest playback gear..........