No analog system has infinite precision (Score 1)

Every analog component a signal runs through adds noise. Signals / sounds significantly below a system's noise floor are simply undetectable and lost. The statement that no digital system can contain what is on a vinyl disk is false. It can be argued that existing digital hardware does achieve this level. However, it does not take a huge number of bits to exceed the SNR (signal to noise ratio) of any analog system made out of real world components.