Absolutely agree. Even more, once you are in digital, you can have actual mathematical perfection, that is reproducible and does not degrade with time. I just

Absolutely agree. Even more, once you are in digital, you can have actual mathematical perfection, that is reproducible and does not degrade with time. I just seem to take issue when Nyquist is getting inwoked. That is a purely mathematical result. It is sufficient (and I think required, too) to plug source into ADC+DAC, measure the output and show that the difference is insignificant. And much less than, say, with tape.