I don't think that is true, given that digital will always be samples of the original. I worked at a mastering studio that had a laser record player, best sound I have heard.
Nyquist–Shannon begs to differ.
N-S requires, for instance, an analog signal which is perfectly band-limited. This implies that it must be of infinite duration, which, obviously, is not the case.
However, it is plenty infinite-ish enough for all practical purposes.